Build: Bump pydantic from 2.11.7 to 2.11.9 (apache#2474)

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.11.7 to
2.11.9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pydantic/pydantic/releases">pydantic's
releases</a>.</em></p>
<blockquote>
<h2>v2.11.9 2025-09-13</h2>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Backport v1.10.23 changes by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pydantic/pydantic/compare/v2.11.8...v2.11.9">https://github.com/pydantic/pydantic/compare/v2.11.8...v2.11.9</a></p>
<h2>v2.11.8 2025-09-13</h2>
<h2>v2.11.8 (2025-09-13)</h2>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix mypy plugin for mypy 1.18 by <a
href="https://github.com/cdce8p"><code>@​cdce8p</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/12209">#12209</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pydantic/pydantic/compare/v2.11.7...v2.11.8">https://github.com/pydantic/pydantic/compare/v2.11.7...v2.11.8</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pydantic/pydantic/blob/v2.11.9/HISTORY.md">pydantic's
changelog</a>.</em></p>
<blockquote>
<h2>v2.11.9 (2025-09-13)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.11.9">GitHub
release</a></p>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Backport v1.10.23 changes by <a
href="https://github.com/Viicos"><code>@​Viicos</code></a></li>
</ul>
<h2>v2.11.8 (2025-09-13)</h2>
<p><a
href="https://github.com/pydantic/pydantic/releases/tag/v2.11.8">GitHub
release</a></p>
<h3>What's Changed</h3>
<h4>Fixes</h4>
<ul>
<li>Fix mypy plugin for mypy 1.18 by <a
href="https://github.com/cdce8p"><code>@​cdce8p</code></a> in <a
href="https://redirect.github.com/pydantic/pydantic/pull/12209">#12209</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pydantic/pydantic/commit/92310953c146a2ac668a0141be820c083e325f5d"><code>9231095</code></a>
Prepare release v2.11.9</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/f003a89eeaff35ee18f220a2c790d20536e3d0ab"><code>f003a89</code></a>
Backport v1.10.23 changes</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/96b81ddaf93a1f2e19ff1609080c33de10b8d931"><code>96b81dd</code></a>
Prepare release v2.11.8</li>
<li><a
href="https://github.com/pydantic/pydantic/commit/966f377692194b3f1d6d5155ac78052bec0a751d"><code>966f377</code></a>
Fix mypy v2 plugin for upcoming <code>1.18</code> mypy release</li>
<li>See full diff in <a
href="https://github.com/pydantic/pydantic/compare/v2.11.7...v2.11.9">compare
view</a></li>
</ul>
</details>
<br />


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