Bump cython from 3.0.12 to 3.1.1 (#10875)

Bumps [cython](https://github.com/cython/cython) from 3.0.12 to 3.1.1.
<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>3.1.1</h2>
<p>No release notes provided.</p>
<h2>3.1.0-1</h2>
<p>No release notes provided.</p>
<h2>3.1.0</h2>
<p>No release notes provided.</p>
<h2>3.1.0rc2</h2>
<p>No release notes provided.</p>
<h2>3.1.0rc1</h2>
<p>No release notes provided.</p>
<h2>3.1.0b1</h2>
<p>No release notes provided.</p>
<h2>3.1.0a1</h2>
<h1>3.1.0 alpha 1 (2024-11-08)</h1>
<h2>Features added</h2>
<ul>
<li>
<p>Support for freethreading builds of CPython 3.13 was added.
It comes with a new directive <code>freethreading_compatible=True</code>
to mark modules as
free-threading compatible (<code>Py_mod_gil</code>).
<a
href="https://github.com/cython/cython/issues?q=label%3A%22nogil+CPython">https://github.com/cython/cython/issues?q=label%3A&quot;nogil+CPython</a>&quot;
Patches by Lysandros Nikolaou and Nathan Goldbaum. (Github issue
:issue:<code>6162</code>)</p>
</li>
<li>
<p>Support for monitoring Cython modules via <code>sys.monitoring</code>
in CPython 3.13+ was added.
For coverage reporting, this needs to be disabled with
<code>-DCYTHON_USE_SYS_MONITORING=0</code>
as long as <code>coverage.py</code> does not support
<code>sys.monitoring</code> for coverage plugins.
(Github issue :issue:<code>6144</code>)</p>
</li>
<li>
<p>Many issues with the Limited C-API were resolved.
It is now sufficient to define the macro <code>Py_LIMITED_API</code> to
activate the support.
<a
href="https://github.com/cython/cython/issues?q=label%3A%22limited+api%22">https://github.com/cython/cython/issues?q=label%3A%22limited+api%22</a></p>
</li>
<li>
<p>Support for GraalPython was improved (but is still incomplete).</p>
</li>
<li>
<p>Several issues with the gdb support were resolved.
Patches by Kent Slaney. (Github issues :issue:<code>5955</code>,
:issue:<code>5948</code>)</p>
</li>
<li>
<p><code>typing.Union[SomeType, None]</code> and <code>SomeType |
None</code> are now understood and mean
the same as <code>typing.Optional[SomeType]</code>, allowing
<code>None</code> in type checks.
(Github issue :issue:<code>6254</code>)</p>
</li>
<li>
<p><code>cython.const[]</code> and <code>cython.volatile[]</code> are
now available as type modifiers in Python code.</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</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>3.1.1 (2025-05-19)</h1>
<h2>Bugs fixed</h2>
<ul>
<li>
<p>A reference leak in the async delegation code was fixed.
(Github issues :issue:<code>6850</code>, :issue:<code>6878</code>)</p>
</li>
<li>
<p>Conditional if-else expressions mixing Python and C (numeric) types
could end up
inferring an overly tight result type, thus leading to unexpected type
conversions,
runtime exceptions on assignment, or incorrect &quot;temporary
assignment&quot; compile errors.
(Github issue :issue:<code>6854</code>)</p>
</li>
<li>
<p>Some Limited API issues were resolved.
(Github issue :issue:<code>6862</code>)</p>
</li>
<li>
<p>Large C <code>long long</code> values could be truncated when passed
into PyPy.
(Github issue :issue:<code>6890</code>)</p>
</li>
<li>
<p><code>callable()</code> incorrectly reported <code>False</code> in
PyPy for classes with metaclasses.
Patch by Anatolii Aniskovych. (Github issue
:issue:<code>6892</code>)</p>
</li>
<li>
<p>The signature of fused functions was no longer introspectable in
Cython 3.1.0.
(Github issue :issue:<code>6855</code>)</p>
</li>
<li>
<p>Coroutines could generate invalid C with line tracing enabled.
(Github issue :issue:<code>6865</code>)</p>
</li>
<li>
<p>Code using <code>complex()</code> could generate invalid C code
missing type declarations.
(Github issue :issue:<code>6860</code>)</p>
</li>
<li>
<p>Code using e.g. <code>list[int | None]</code> outside of
variable/argument annotations failed to compile.
(Github issue :issue:<code>6856</code>)</p>
</li>
<li>
<p>Code using ctuples in a <code>const</code> context could generate
invalid C.
(Github issue :issue:<code>6864</code>)</p>
</li>
<li>
<p>Accessing special methods on cpdef enums failed to compile.</p>
</li>
<li>
<p>Some C compiler warnings were resolved.
Patches by Daniel Larraz. (Github issues :issue:<code>6876</code>,
:issue:<code>3172</code>, :issue:<code>6873</code>,
:issue:<code>6877</code>)</p>
</li>
<li>
<p>Re-establish support for PyPy 3.8.
(Github issue :issue:<code>6867</code>)</p>
</li>
</ul>
<h1>3.1.0 (2025-05-08)</h1>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/cython/cython/commit/aeadbbeaf5eb23c5e8768c3a92beb6c8e20622c5"><code>aeadbbe</code></a>
Prepare release of Cython 3.1.1.</li>
<li><a
href="https://github.com/cython/cython/commit/9532c339abb13b660e8566611709b043c094e320"><code>9532c33</code></a>
Update changelog.</li>
<li><a
href="https://github.com/cython/cython/commit/e7baa598a11d5af354e66f155be00366a54a8bc9"><code>e7baa59</code></a>
Use PyCallable_Check() instead of type slots for callable() in PyPy (<a
href="https://redirect.github.com/cython/cython/issues/6894">GH-6894</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/279377de7ed671b6901f1152aaaf5952211181a6"><code>279377d</code></a>
Fix race in dict getter (<a
href="https://redirect.github.com/cython/cython/issues/6849">GH-6849</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/987891efbd41caf21285a9c4a5eb5e9932d53428"><code>987891e</code></a>
Update changelog.</li>
<li><a
href="https://github.com/cython/cython/commit/edac54714c9ce6334a927b5c0dfc5960c8cb1ee8"><code>edac547</code></a>
Avoid calling &quot;PyLong_FromUnsignedLongLong()&quot; in PyPy.</li>
<li><a
href="https://github.com/cython/cython/commit/8e107e95342990a2df3673152f913bbffd53aaff"><code>8e107e9</code></a>
Document CYTHON_USE_SYS_MONITORING (<a
href="https://redirect.github.com/cython/cython/issues/6886">GH-6886</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/56ab917d114b369f19fdc504608b456222fa1d5f"><code>56ab917</code></a>
CI: Fix PyPy3.8 build (<a
href="https://redirect.github.com/cython/cython/issues/6889">GH-6889</a>)</li>
<li><a
href="https://github.com/cython/cython/commit/0ab0e32a19a3bfd917395da92a82f7e784c77cb2"><code>0ab0e32</code></a>
Update trace/profile test config for Py3.12, which at least partially
works.</li>
<li><a
href="https://github.com/cython/cython/commit/c4adc2d6f421893edf16948672f673254e3ebf7c"><code>c4adc2d</code></a>
CI: Also disable &quot;twine&quot; usage on &quot;Py*t-dev&quot;
versions.</li>
<li>Additional commits viewable in <a
href="https://github.com/cython/cython/compare/3.0.12...3.1.1">compare
view</a></li>
</ul>
</details>
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requirements/constraints.txt

@@ -60,7 +60,7 @@ cryptography==44.0.3
     # via
     #   pyjwt
     #   trustme
-cython==3.0.12
+cython==3.1.1
     # via -r requirements/cython.in
 distlib==0.3.9
     # via virtualenv

requirements/cython.txt

@@ -4,7 +4,7 @@
 #
 #    pip-compile --allow-unsafe --output-file=requirements/cython.txt --resolver=backtracking --strip-extras requirements/cython.in
 #
-cython==3.0.12
+cython==3.1.1
     # via -r requirements/cython.in
 multidict==6.4.3
     # via -r requirements/multidict.in