chore(deps): Bump rustls-webpki from 0.103.10 to 0.103.12 in /bindings/python (#2352)

Bumps [rustls-webpki](https://github.com/rustls/webpki) from 0.103.10 to
0.103.12.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rustls/webpki/releases">rustls-webpki's
releases</a>.</em></p>
<blockquote>
<h2>0.103.12</h2>
<p>This release fixes two bugs in name constraint enforcement:</p>
<ul>
<li><strong>GHSA-965h-392x-2mh5</strong>: name constraints for URI names
were ignored and therefore accepted. URI name constraints are now
rejected unconditionally. Note this library does not provide an API for
asserting URI names, and URI name constraints are otherwise not
implemented.</li>
<li><strong>GHSA-xgp8-3hg3-c2mh</strong>: permitted subtree name
constraints for DNS names were accepted for certificates asserting a
wildcard name. This was incorrect because, given a name constraint of
<code>accept.example.com</code>, <code>*.example.com</code> could
feasibly allow a name of <code>reject.example.com</code> which is
outside the constraint. This is very similar to <a
href="https://go.dev/issue/76442">CVE-2025-61727</a>.</li>
</ul>
<p>Since name constraints are restrictions on otherwise properly-issued
certificates, these bugs are reachable only after signature verification
and require misissuance to exploit.</p>
<h2>What's Changed</h2>
<ul>
<li>Prepare 0.103.12 by <a
href="https://github.com/djc"><code>@​djc</code></a> in <a
href="https://redirect.github.com/rustls/webpki/pull/470">rustls/webpki#470</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/rustls/webpki/compare/v/0.103.11...v/0.103.12">https://github.com/rustls/webpki/compare/v/0.103.11...v/0.103.12</a></p>
<h2>0.103.11</h2>
<p>In response to <a
href="https://redirect.github.com/rustls/webpki/issues/464">#464</a>,
we've slightly relaxed requirements for
<code>anchor_from_trust_cert()</code> to ignore unknown extensions even
if they're marked as critical. This only affects parsing a
<code>TrustAnchor</code> from DER, for which most extensions are ignored
anyway.</p>
<h2>What's Changed</h2>
<ul>
<li>Backport parsing trust anchors with unknown critical extensions to
0.103 by <a href="https://github.com/djc"><code>@​djc</code></a> in <a
href="https://redirect.github.com/rustls/webpki/pull/466">rustls/webpki#466</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rustls/webpki/commit/27131d476e2b68a537e629d6d012bef8dad6efd3"><code>27131d4</code></a>
Bump version to 0.103.12</li>
<li><a
href="https://github.com/rustls/webpki/commit/6ecb8769cde2246e761e058709421c14a7dee6b1"><code>6ecb876</code></a>
Clean up stuttery enum variant names</li>
<li><a
href="https://github.com/rustls/webpki/commit/318b3e6e03ca2bc21600ca6bb0d0c6439b9e6aeb"><code>318b3e6</code></a>
Ignore wildcard labels when matching name constraints</li>
<li><a
href="https://github.com/rustls/webpki/commit/12196229a327d3d670798688254bd3ea24aba24b"><code>1219622</code></a>
Rewrite constraint matching to avoid permissive catch-all branch</li>
<li><a
href="https://github.com/rustls/webpki/commit/57bc62ce538c2d0d31d44b3eb8c58e6a0a764b47"><code>57bc62c</code></a>
Bump version to 0.103.11</li>
<li><a
href="https://github.com/rustls/webpki/commit/d0fa01ee0a76b7585c13ec43de5854955146ffef"><code>d0fa01e</code></a>
Allow parsing trust anchors with unknown criticial extensions</li>
<li>See full diff in <a
href="https://github.com/rustls/webpki/compare/v/0.103.10...v/0.103.12">compare
view</a></li>
</ul>
</details>
<br />


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