chore(deps): Bump coverage from 7.11.0 to 7.12.0 in /cirrus/server (#14038)

Bumps [coverage](https://github.com/coveragepy/coveragepy) from 7.11.0
to 7.12.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst">coverage's
changelog</a>.</em></p>
<blockquote>
<h2>Version 7.12.0 — 2025-11-18</h2>
<ul>
<li>
<p>The HTML report now shows separate coverage totals for statements and
branches, as well as the usual combined coverage percentage. Thanks to
Ryuta
Otsuka for the <code>discussion &lt;issue 2081_&gt;</code>_ and the
<code>implementation &lt;pull 2085_&gt;</code>_.</p>
</li>
<li>
<p>The JSON report now includes separate coverage totals for statements
and
branches, thanks to <code>Ryuta Otsuka &lt;pull 2090_&gt;</code>_.</p>
</li>
<li>
<p>Fix: <code>except*</code> clauses were not handled properly under the
&quot;sysmon&quot;
measurement core, causing KeyError exceptions as described in
<code>issue 2086</code>_.
This is now fixed.</p>
</li>
<li>
<p>Fix: we now defend against aggressive mocking of <code>open()</code>
that could cause
errors inside coverage.py. An example of a failure is in <code>issue
2083</code>_.</p>
</li>
<li>
<p>Fix: in unusual cases where a test suite intentionally exhausts the
system's
file descriptors to test handling errors in <code>open()</code>,
coverage.py would
fail when trying to open source files, as described in <code>issue
2091</code>_. This
is now fixed.</p>
</li>
<li>
<p>A small tweak to the HTML report: file paths now use thin spaces
around
slashes to make them easier to read.</p>
</li>
</ul>
<p>.. _issue 2081: <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2081">coveragepy/coveragepy#2081</a>
.. _issue 2083: <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2083">coveragepy/coveragepy#2083</a>
.. _pull 2085: <a
href="https://redirect.github.com/coveragepy/coveragepy/pull/2085">coveragepy/coveragepy#2085</a>
.. _issue 2086: <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2086">coveragepy/coveragepy#2086</a>
.. _pull 2090: <a
href="https://redirect.github.com/coveragepy/coveragepy/pull/2090">coveragepy/coveragepy#2090</a>
.. _issue 2091: <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2091">coveragepy/coveragepy#2091</a></p>
<p>.. _changes_7-11-3:</p>
<h2>Version 7.11.3 — 2025-11-09</h2>
<ul>
<li>
<p>Fix: the 7.11.1 changes meant that conflicts between a requested
measurement
core and other settings would raise an error. This was a breaking change
from
previous behavior, as reported in <code>issue 2076</code>_ and
<code>issue 2078</code>_.</p>
<p>The previous behavior has been restored: when the requested core
conflicts
with other settings, another core is used instead, and a warning is
issued.</p>
</li>
<li>
<p>For contributors: the repo has moved from Ned's <code>nedbat GitHub
account</code>_ to
the <code>coveragepy GitHub organization</code>_. The default branch has
changed from
master to main.</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/63db2b12d7a4fedda90061553ccf2ec6849c8a3d"><code>63db2b1</code></a>
docs: sample HTML for 7.12.0</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/598bbc3a51a492860547e7c3d8d076b811efe1bb"><code>598bbc3</code></a>
docs: prep for 7.12.0</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/557dd15f75bc4b4bf93b6163a9e6b2b29647d90d"><code>557dd15</code></a>
feat: add statement and branch coverage percentages to JSON report (<a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2090">#2090</a>)</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/e18359c834f0f428425b62fc564ec6d106d413e5"><code>e18359c</code></a>
fix: don't crash if open() genuinely fails. <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2091">#2091</a></li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/fff5e59b28e0a4660a5e19975eb02aeffcb05a01"><code>fff5e59</code></a>
docs: thanks, Ryuta Otsuka <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2085">#2085</a></li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/97bf6251ef0c40174645d6fb0352a25df3531e72"><code>97bf625</code></a>
docs: support files for the sample html</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/8320b746113ec269437d3465873ff7ae19eeccc1"><code>8320b74</code></a>
style(html): tweak the styling for the new stmt/branch stats <a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2085">#2085</a></li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/7e081839b0987c6a9b3bba4efe86e80deb1c1776"><code>7e08183</code></a>
feat(templite): {% else %}</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/4abe253c579db1b3d72a4b2dfd52bf9b7c2fc2aa"><code>4abe253</code></a>
feat: add statement and branch coverage columns to index.html report (<a
href="https://redirect.github.com/coveragepy/coveragepy/issues/2085">#2085</a>)</li>
<li><a
href="https://github.com/coveragepy/coveragepy/commit/ddbafa90974ff4de00467f05ba712d6d21937920"><code>ddbafa9</code></a>
build: no longer need to work around a pytest/iTerm2 bug</li>
<li>Additional commits viewable in <a
href="https://github.com/coveragepy/coveragepy/compare/7.11.0...7.12.0">compare
view</a></li>
</ul>
</details>
<br />


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