chore(docs): bump pymdown-extensions from 10.16 to 10.16.1 in /.github/workflows/mkdocs (#4958)

Bumps
[pymdown-extensions](https://github.com/facelessuser/pymdown-extensions)
from 10.16 to 10.16.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/facelessuser/pymdown-extensions/releases">pymdown-extensions's
releases</a>.</em></p>
<blockquote>
<h2>10.6.1</h2>
<h2>10.16.1</h2>
<ul>
<li><strong>FIX</strong>: Inefficient regular expression pattern for
figure caption numbers.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/facelessuser/pymdown-extensions/commit/b50d15a56850ed1408a284bba81cc019c6bd72e8"><code>b50d15a</code></a>
Caption pattern should match a literal dot (<a
href="https://redirect.github.com/facelessuser/pymdown-extensions/issues/2717">#2717</a>)</li>
<li><a
href="https://github.com/facelessuser/pymdown-extensions/commit/f64422f87c05031a8c8d62b1988bf76e8f65f27f"><code>f64422f</code></a>
Update copyright</li>
<li><a
href="https://github.com/facelessuser/pymdown-extensions/commit/9edb92606fc813e983fce3187862a4f28bb15886"><code>9edb926</code></a>
Use Trusted Publisher</li>
<li>See full diff in <a
href="https://github.com/facelessuser/pymdown-extensions/compare/10.16...10.16.1">compare
view</a></li>
</ul>
</details>
<br />


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.github/workflows/mkdocs/requirements.txt

@@ -251,9 +251,9 @@ pygments==2.19.2 \
     --hash=sha256:636cb2477cec7f8952536970bc533bc43743542f70392ae026374600add5b887 \
     --hash=sha256:86540386c03d588bb81d44bc3928634ff26449851e99741617ecb9037ee5ec0b
     # via mkdocs-material
-pymdown-extensions==10.16 \
-    --hash=sha256:71dac4fca63fabeffd3eb9038b756161a33ec6e8d230853d3cecf562155ab3de \
-    --hash=sha256:f5dd064a4db588cb2d95229fc4ee63a1b16cc8b4d0e6145c0899ed8723da1df2
+pymdown-extensions==10.16.1 \
+    --hash=sha256:aace82bcccba3efc03e25d584e6a22d27a8e17caa3f4dd9f207e49b787aa9a91 \
+    --hash=sha256:d6ba157a6c03146a7fb122b2b9a121300056384eafeec9c9f9e584adfdb2a32d
     # via mkdocs-material
 python-dateutil==2.9.0.post0 \
     --hash=sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3 \