Bump sphinx from 7.2.6 to 9.0.4 (#587)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.2.6 to
9.0.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/sphinx-doc/sphinx/releases">sphinx's
releases</a>.</em></p>
<blockquote>
<h2>Sphinx 9.0.4</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/9.0.html">https://www.sphinx-doc.org/en/master/changes/9.0.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14143">#14143</a>:
Fix spurious build warnings when translators reorder references
in strings, or use translated display text in references.
Patch by Matt Wang.</li>
</ul>
<h2>Sphinx 9.0.3</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/9.0.html">https://www.sphinx-doc.org/en/master/changes/9.0.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14142">#14142</a>:
autodoc: Restore some missing exports in
<code>sphinx.ext.autodoc</code>.
Patch by Adam Turner.</li>
</ul>
<h2>Sphinx 9.0.2</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/9.0.html">https://www.sphinx-doc.org/en/master/changes/9.0.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14142">#14142</a>:
autodoc: Restore <code>sphinx.ext.autodoc.mock</code>.
Patch by Adam Turner.</li>
</ul>
<h2>Sphinx 9.0.1</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/9.0.html">https://www.sphinx-doc.org/en/master/changes/9.0.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13942">#13942</a>:
autodoc: Restore the mapping interface for options objects.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13942">#13942</a>:
autodoc: Deprecate the mapping interface for options objects.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13387">#13387</a>:
Update translations.</li>
</ul>
<h2>Sphinx 9.0.0</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/9.0.html">https://www.sphinx-doc.org/en/master/changes/9.0.html</a></p>
<h2>Dependencies</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13786">#13786</a>:
Support <a
href="https://docutils.sourceforge.io/RELEASE-NOTES.html#release-0-22-2026-07-29">Docutils
0.22</a>. Patch by Adam Turner.</li>
</ul>
<p>Incompatible changes</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/sphinx-doc/sphinx/blob/v9.0.4/CHANGES.rst">sphinx's
changelog</a>.</em></p>
<blockquote>
<h1>Release 9.0.4 (released Dec 04, 2025)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14143">#14143</a>:
Fix spurious build warnings when translators reorder references
in strings, or use translated display text in references.
Patch by Matt Wang.</li>
</ul>
<h1>Release 9.0.3 (released Dec 04, 2025)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14142">#14142</a>:
autodoc: Restore some missing exports in
:mod:<code>!sphinx.ext.autodoc</code>.
Patch by Adam Turner.</li>
</ul>
<h1>Release 9.0.2 (released Dec 03, 2025)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14142">#14142</a>:
autodoc: Restore :mod:<code>!sphinx.ext.autodoc.mock</code>.
Patch by Adam Turner.</li>
</ul>
<h1>Release 9.0.1 (released Dec 01, 2025)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13942">#13942</a>:
autodoc: Restore the mapping interface for options objects.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13942">#13942</a>:
autodoc: Deprecate the mapping interface for options objects.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13387">#13387</a>:
Update translations.</li>
</ul>
<h1>Release 9.0.0 (released Nov 30, 2025)</h1>
<h2>Dependencies</h2>
<ul>
<li>
<p><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13786">#13786</a>:
Support <code>Docutils 0.22</code>_. Patch by Adam Turner.</p>
<p>.. _Docutils 0.22: <a
href="https://docutils.sourceforge.io/RELEASE-NOTES.html#release-0-22-2026-07-29">https://docutils.sourceforge.io/RELEASE-NOTES.html#release-0-22-2026-07-29</a></p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/8ddba7e4cb5fdc035b9b18b2a8594724a3a33b86"><code>8ddba7e</code></a>
Bump to 9.0.4 final</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/69596331b3680ebfc3b6dfbc60ce86c885423316"><code>6959633</code></a>
[bot]: Update message catalogues (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14155">#14155</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/88a4a97873c9300b9de8d67ac7a4b98a0b26c03f"><code>88a4a97</code></a>
Allow reordered refs and translated display text in pending_xref (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14144">#14144</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/f666208d78296b93781227744b6608df82a63b51"><code>f666208</code></a>
Bump version</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/df8a9e7e9ecb3e1bedb669e0d5ae3850b78e5114"><code>df8a9e7</code></a>
Bump to 9.0.3 final</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/bd89f96c64a1d0a33270b6ceccef90a73b11a3bf"><code>bd89f96</code></a>
Import names from defining module</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/7d05936ae19273c28f79ecb94137ba2c01413ba8"><code>7d05936</code></a>
autodoc: Restore some missing exports</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/b745a1153047c399fdf2e242bd964d07cab220a0"><code>b745a11</code></a>
Bump version</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/1ac581c7334583710a0c9651f02d0debf7e306cf"><code>1ac581c</code></a>
Bump to 9.0.2 final</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/1281a832a884625e54f3585fe9fc8a0c5179ed2b"><code>1281a83</code></a>
autodoc: Restore <code>mock</code> module for compatibility (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/14152">#14152</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/sphinx-doc/sphinx/compare/v7.2.6...v9.0.4">compare
view</a></li>
</ul>
</details>
<br />

Author: tompollard

pyproject.toml

@@ -37,7 +37,7 @@ dev = [
 docs = [
     "fsspec >= 2023.10.0",
     "numpydoc == 1.7.0",
-    "sphinx == 7.2.6",
+    "sphinx==9.0.4",
 ]
 
 [tool.ruff]