build(deps): bump pypdf from 6.4.0 to 6.6.0 in /testing/cucumber (#5422)
Bumps [pypdf](https://github.com/py-pdf/pypdf) from 6.4.0 to 6.6.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/py-pdf/pypdf/releases">pypdf's
releases</a>.</em></p>
<blockquote>
<h2>Version 6.6.0, 2026-01-09</h2>
<h2>What's new</h2>
<h3>Security (SEC)</h3>
<ul>
<li>Improve handling of partially broken PDF files (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3594">#3594</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<h3>Deprecations (DEP)</h3>
<ul>
<li>Block common page content modifications when assigned to reader (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3582">#3582</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<h3>New Features (ENH)</h3>
<ul>
<li>Embellishments to generated text appearance streams (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3571">#3571</a>)
by <a href="https://github.com/PJBrs"><code>@PJBrs</code></a></li>
</ul>
<h3>Bug Fixes (BUG)</h3>
<ul>
<li>Do not consider multi-byte BOM-like sequences as BOMs (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3589">#3589</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<h3>Robustness (ROB)</h3>
<ul>
<li>Avoid empty FlateDecode outputs without warning (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3579">#3579</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<h3>Documentation (DOC)</h3>
<ul>
<li>Add outlines documentation and link it in User Guide (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3511">#3511</a>)
by <a
href="https://github.com/mainuddin-md"><code>@mainuddin-md</code></a></li>
</ul>
<h3>Developer Experience (DEV)</h3>
<ul>
<li>Add PyPy 3.11 to test matrix and benchmarks (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3574">#3574</a>)
by <a href="https://github.com/rassie"><code>@rassie</code></a></li>
</ul>
<h3>Maintenance (MAINT)</h3>
<ul>
<li>Fix compatibility with Pillow >= 12.1.0 (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3590">#3590</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<p><a href="https://github.com/py-pdf/pypdf/compare/6.5.0...6.6.0">Full
Changelog</a></p>
<h2>Version 6.5.0, 2025-12-21</h2>
<h2>What's new</h2>
<h3>New Features (ENH)</h3>
<ul>
<li>Limit jbig2dec memory usage (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3576">#3576</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
<li>FontDescriptor: Initiate from embedded font resource (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3551">#3551</a>)
by <a href="https://github.com/PJBrs"><code>@PJBrs</code></a></li>
</ul>
<h3>Robustness (ROB)</h3>
<ul>
<li>Allow fallback to PBM files for jbig2dec without PNG support (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3567">#3567</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
<li>Use warning instead of error for early EOD for RunLengthDecode (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3548">#3548</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<h3>Developer Experience (DEV)</h3>
<ul>
<li>Test with macOS as well (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3401">#3401</a>)
by <a
href="https://github.com/stefan6419846"><code>@stefan6419846</code></a></li>
</ul>
<p><a href="https://github.com/py-pdf/pypdf/compare/6.4.2...6.5.0">Full
Changelog</a></p>
<h2>Version 6.4.2, 2025-12-14</h2>
<h2>What's new</h2>
<h3>Bug Fixes (BUG)</h3>
<ul>
<li>Fix KeyError when flattening form field without /Font in resources
(<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3554">#3554</a>)
by <a
href="https://github.com/jgillard"><code>@jgillard</code></a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md">pypdf's
changelog</a>.</em></p>
<blockquote>
<h2>Version 6.6.0, 2026-01-09</h2>
<h3>Security (SEC)</h3>
<ul>
<li>Improve handling of partially broken PDF files (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3594">#3594</a>)</li>
</ul>
<h3>Deprecations (DEP)</h3>
<ul>
<li>Block common page content modifications when assigned to reader (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3582">#3582</a>)</li>
</ul>
<h3>New Features (ENH)</h3>
<ul>
<li>Embellishments to generated text appearance streams (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3571">#3571</a>)</li>
</ul>
<h3>Bug Fixes (BUG)</h3>
<ul>
<li>Do not consider multi-byte BOM-like sequences as BOMs (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3589">#3589</a>)</li>
</ul>
<h3>Robustness (ROB)</h3>
<ul>
<li>Avoid empty FlateDecode outputs without warning (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3579">#3579</a>)</li>
</ul>
<h3>Documentation (DOC)</h3>
<ul>
<li>Add outlines documentation and link it in User Guide (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3511">#3511</a>)</li>
</ul>
<h3>Developer Experience (DEV)</h3>
<ul>
<li>Add PyPy 3.11 to test matrix and benchmarks (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3574">#3574</a>)</li>
</ul>
<h3>Maintenance (MAINT)</h3>
<ul>
<li>Fix compatibility with Pillow >= 12.1.0 (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3590">#3590</a>)</li>
</ul>
<p><a href="https://github.com/py-pdf/pypdf/compare/6.5.0...6.6.0">Full
Changelog</a></p>
<h2>Version 6.5.0, 2025-12-21</h2>
<h3>New Features (ENH)</h3>
<ul>
<li>Limit jbig2dec memory usage (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3576">#3576</a>)</li>
<li>FontDescriptor: Initiate from embedded font resource (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3551">#3551</a>)</li>
</ul>
<h3>Robustness (ROB)</h3>
<ul>
<li>Allow fallback to PBM files for jbig2dec without PNG support (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3567">#3567</a>)</li>
<li>Use warning instead of error for early EOD for RunLengthDecode (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3548">#3548</a>)</li>
</ul>
<h3>Developer Experience (DEV)</h3>
<ul>
<li>Test with macOS as well (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3401">#3401</a>)</li>
</ul>
<p><a href="https://github.com/py-pdf/pypdf/compare/6.4.2...6.5.0">Full
Changelog</a></p>
<h2>Version 6.4.2, 2025-12-14</h2>
<h3>Bug Fixes (BUG)</h3>
<ul>
<li>Fix KeyError when flattening form field without /Font in resources
(<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3554">#3554</a>)</li>
</ul>
<h3>Robustness (ROB)</h3>
<ul>
<li>Allow deleting non-existent annotations (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3559">#3559</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/py-pdf/pypdf/commit/10df9c72fa7fb9ab14101b9cb911d66e680282a8"><code>10df9c7</code></a>
REL: 6.6.0</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/294165726b646bb7799be1cc787f593f2fdbcf45"><code>2941657</code></a>
SEC: Improve handling of partially broken PDF files (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3594">#3594</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/712688005e49d2d0a4427db0b16abbae160fe106"><code>7126880</code></a>
DEV: Update to urllib3 2.6.3 (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3593">#3593</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/f189f0755eb111564ae8667a990738a9e7ab4ba9"><code>f189f07</code></a>
DOC: Add outlines documentation and link it in User Guide (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3511">#3511</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/a29e5326f543f93c4c317cf9f92df54aff68c584"><code>a29e532</code></a>
BUG: Do not consider multi-byte BOM-like sequences as BOMs (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3589">#3589</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/d9ce594772717fdcfcd505d0309843461579bbf7"><code>d9ce594</code></a>
MAINT: Converge on one shared Font class for text extraction and
appearance s...</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/a65708c778467f1525662dfe5614a486adbd16b0"><code>a65708c</code></a>
DEV: Check for JavaScript library updates on GitHub Pages (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3592">#3592</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/6951bb7c039afd02bd273dda412c3f36df76eba3"><code>6951bb7</code></a>
MAINT: Fix compatibility with Pillow >= 12.1.0 (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3590">#3590</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/97d47a001d574dfda54bf16c4dcee89ccbfabec8"><code>97d47a0</code></a>
TST: Improve test coverage (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3584">#3584</a>)</li>
<li><a
href="https://github.com/py-pdf/pypdf/commit/bda80a4846a8646419a04cc253d81b73773d3cec"><code>bda80a4</code></a>
DEV: Add PyPy 3.11 to test matrix and benchmarks (<a
href="https://redirect.github.com/py-pdf/pypdf/issues/3574">#3574</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/py-pdf/pypdf/compare/6.4.0...6.6.0">compare
view</a></li>
</ul>
</details>
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