Build: Bump cython from 3.1.6 to 3.2.0 (#2717)

Bumps [cython](https://github.com/cython/cython) from 3.1.6 to 3.2.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/cython/cython/releases">cython's
releases</a>.</em></p>
<blockquote>
<h2>3.2.0</h2>
<p>No release notes provided.</p>
<h2>3.2.0b3</h2>
<p>No release notes provided.</p>
<h2>3.2.0b2</h2>
<p>No release notes provided.</p>
<h2>3.2.0b1-3</h2>
<p>No release notes provided.</p>
<h2>3.2.0b1</h2>
<p>Not released due to package metadata problems.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/cython/cython/blob/master/CHANGES.rst">cython's
changelog</a>.</em></p>
<blockquote>
<h1>3.2.0 (2025-11-05)</h1>
<p>(Complete changelog for the 3.2.0 release, including
pre-releases.)</p>
<h2>Features added</h2>
<ul>
<li>
<p>Builtin exception types are now inferred.
(Github issue :issue:<code>6908</code>)</p>
</li>
<li>
<p>The list of known, inferred and optimised Python builtins was
updated.
<code>range</code> is now considered a type. <code>ascii</code>,
<code>bin</code>, <code>format</code>, <code>hex</code>,
<code>oct</code> were added as functions.
(Github issue :issue:<code>6931</code>)</p>
</li>
<li>
<p>The f-string syntax was extended according to PEP-701.
(Github issue :issue:<code>5452</code>)</p>
</li>
<li>
<p>t-strings are implemented according to PEP-750. The implementation
backports the template classes
but prefers existing backports if installed separately.
(Github issue :issue:<code>6811</code>)</p>
</li>
<li>
<p>Unknown return type annotations with <code>-&gt;</code> are no longer
rejected but produce warnings.
This allows better integration with Python type hints that are not
always usable for Cython.
<code>-&gt; None</code>  is also allowed now.
Patch by jpe.  (Github issue :issue:<code>6946</code>)</p>
</li>
<li>
<p>The runtime Python dispatch for fused functions is substantially
faster.
(Github issues :issue:<code>1385</code>, :issue:<code>6996</code>)</p>
</li>
<li>
<p>Freelists (via cdef class decorator and for internally used types
such as <code>async</code>)
are now also used in the Limited API and with extension type specs
enabled.
(Github issue :issue:<code>7151</code>)</p>
</li>
<li>
<p>Module imports now quickly check for an already imported module to
speed up reimports.
Patch by Lysandros Nikolaou. (Github issue :issue:<code>7035</code>)</p>
</li>
<li>
<p>Type checks on PEP-604 union types (<code>int | None</code>) are
optimised into separate checks.
(Github issue :issue:<code>6935</code>)</p>
</li>
<li>
<p>Assignments to the PEP-604 union type <code>float | None</code> allow
any suitable Python number as input
and convert it to a Python <code>float</code> automatically.
(Github issue :issue:<code>5750</code>)</p>
</li>
<li>
<p>Item type inference was improved for looping over literals.
(Github issue :issue:<code>6912</code>)</p>
</li>
<li>
<p>Looping over literal sequences and strings now uses efficient C array
looping if possible.
(Github issue :issue:<code>6926</code>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/cython/cython/commit/e6533f887fbde09d265ea85765d2e2fa235b38e5"><code>e6533f8</code></a>
Prepare release of 3.2.0.</li>
<li><a
href="https://github.com/cython/cython/commit/3748286bc1ffd5e74a91a8eefb56206ef2a5bb42"><code>3748286</code></a>
Update changelog.</li>
<li><a
href="https://github.com/cython/cython/commit/404f2268893f6f6e536b0063a5dc00e2c1b94823"><code>404f226</code></a>
Docs: Add a note that the Limited API is currently only supported in
CPython.</li>
<li><a
href="https://github.com/cython/cython/commit/f216cfb30e82af5a46ef2f522dfc97a4eb23c24a"><code>f216cfb</code></a>
Fix path building in cygdb script for Windows usage (<a
href="https://redirect.github.com/cython/cython/issues/7285">GH-7285</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/ae782736986935746b7100a68162f832bce81b4d"><code>ae78273</code></a>
Add PyPy 3.11 to test matrix (<a
href="https://redirect.github.com/cython/cython/issues/7284">#7284</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/b3528ac248ce1e05b6f33e344acd7b51e72bec51"><code>b3528ac</code></a>
Bump the github-actions group with 2 updates (<a
href="https://redirect.github.com/cython/cython/issues/7278">#7278</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/1e2102362036a1872e4ca0d6a9acff7fe97c03d6"><code>1e21023</code></a>
Expand isolated limited API tests to cover more versions (<a
href="https://redirect.github.com/cython/cython/issues/7280">#7280</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/e2ef20c527c7d0b1b01d2cbb486c0db92d54d323"><code>e2ef20c</code></a>
Move memoryview acquisition counting out of generic atomics code (<a
href="https://redirect.github.com/cython/cython/issues/7277">GH-7277</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/15f5864c2811bbd4b29b9dad9ac5425aca18c8b8"><code>15f5864</code></a>
Docs: Fix C++ wrapping example in user guide (<a
href="https://redirect.github.com/cython/cython/issues/7195">GH-7195</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/730a05b38a517180be7ec9b627c76d89d160cd55"><code>730a05b</code></a>
Prepare release of 3.2.0b3.</li>
<li>Additional commits viewable in <a
href="https://github.com/cython/cython/compare/3.1.6...3.2.0">compare
view</a></li>
</ul>
</details>
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poetry.lock

@@ -99,7 +99,7 @@ typing-extensions = "4.15.0"
 pytest-mock = "3.15.1"
 pyspark = { version = "4.0.1", extras = ["connect"] }
 protobuf = "6.33.0" # match Spark Connect's gencode
-cython = "3.1.6"
+cython = "3.2.0"
 deptry = ">=0.14,<0.25"
 docutils = "!=0.21.post1"   # https://github.com/python-poetry/poetry/issues/9248#issuecomment-2026240520
 mypy-boto3-glue = ">=1.28.18"