Bump coverage from 7.6.1 to 7.6.9 (#10240)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.6.1 to
7.6.9.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst">coverage's
changelog</a>.</em></p>
<blockquote>
<h2>Version 7.6.9 — 2024-12-06</h2>
<ul>
<li>Fix: <code>Tomas Uribe fixed &lt;pull 1901_&gt;</code>_ a
performance problem in the XML
report. Large code bases should produce XML reports much faster
now.</li>
</ul>
<p>.. _pull 1901: <a
href="https://redirect.github.com/nedbat/coveragepy/pull/1901">nedbat/coveragepy#1901</a></p>
<p>.. _changes_7-6-8:</p>
<h2>Version 7.6.8 — 2024-11-23</h2>
<ul>
<li>
<p>Fix: the LCOV report code assumed that a branch line that took no
branches
meant that the entire line was unexecuted. This isn't true in a few
cases:
the line might always raise an exception, or might have been optimized
away.
Fixes <code>issue 1896</code>_.</p>
</li>
<li>
<p>Fix: similarly, the HTML report will now explain that a line that
jumps to
none of its expected destinations must have always raised an exception.
Previously, it would say something nonsensical like, &quot;line 4 didn't
jump to
line 5 because line 4 was never true, and it didn't jump to line 7
because
line 4 was always true.&quot; This was also shown in <code>issue
1896</code>_.</p>
</li>
</ul>
<p>.. _issue 1896: <a
href="https://redirect.github.com/nedbat/coveragepy/issues/1896">nedbat/coveragepy#1896</a></p>
<p>.. _changes_7-6-7:</p>
<h2>Version 7.6.7 — 2024-11-15</h2>
<ul>
<li>Fix: ugh, the other assert from 7.6.5 can also be encountered in the
wild,
so it's been restored to a conditional.  Sorry for the churn.</li>
</ul>
<p>.. _changes_7-6-6:</p>
<h2>Version 7.6.6 — 2024-11-15</h2>
<ul>
<li>One of the new asserts from 7.6.5 caused problems in real projects,
as
reported in <code>issue 1891</code>_.  The assert has been removed.</li>
</ul>
<p>.. _issue 1891: <a
href="https://redirect.github.com/nedbat/coveragepy/issues/1891">nedbat/coveragepy#1891</a></p>
<p>.. _changes_7-6-5:</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nedbat/coveragepy/commit/daac76dde1681d968f37095cacc551b464888753"><code>daac76d</code></a>
docs: sample HTML for 7.6.9</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/f7d7e42705083b8c124fcc8be64da555095adfc7"><code>f7d7e42</code></a>
docs: prep for 7.6.9</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/8fe3b2bad5de5e750c104ad2ddb251a0500dd146"><code>8fe3b2b</code></a>
docs: thanks, Tomas Uribe for <a
href="https://redirect.github.com/nedbat/coveragepy/issues/1901">#1901</a></li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/346cfc03885571fd448f8218a8b9f12836c2fcb2"><code>346cfc0</code></a>
fix: use set instead of list for arcs_executed, fixes poor performance
(<a
href="https://redirect.github.com/nedbat/coveragepy/issues/1901">#1901</a>)</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/484678e8d7c3b07e455e4c5bbce6f4a5bd03a9b4"><code>484678e</code></a>
fix: COVERAGE_ONE_CORE should mean ctrace if possible</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/37451ed089cb4c5d25e2fe6c13485407d01be176"><code>37451ed</code></a>
chore: make upgrade doc_upgrade</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/bd23445b181387b9c646d6dbf096b624bbc5953b"><code>bd23445</code></a>
chore: bump the action-dependencies group with 2 updates (<a
href="https://redirect.github.com/nedbat/coveragepy/issues/1899">#1899</a>)</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/01cf50c7d9131af2de9aea1e3573bdff1dc48110"><code>01cf50c</code></a>
test: add a test to satisfy a condition in results.py</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/74d3c50af1563b6cbd9ab1ef580267dc55982922"><code>74d3c50</code></a>
chore: make upgrade</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/f3b269cc5d5f1683aba34f57c7d5b991c5dd3743"><code>f3b269c</code></a>
build: only comment once on an issue mentioned twice</li>
<li>Additional commits viewable in <a
href="https://github.com/nedbat/coveragepy/compare/7.6.1...7.6.9">compare
view</a></li>
</ul>
</details>
<br />


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requirements/constraints.txt

@@ -50,7 +50,7 @@ click==8.1.8
     #   slotscheck
     #   towncrier
     #   wait-for-it
-coverage==7.6.1
+coverage==7.6.9
     # via
     #   -r requirements/test.in
     #   pytest-cov

requirements/dev.txt

@@ -50,7 +50,7 @@ click==8.1.8
     #   slotscheck
     #   towncrier
     #   wait-for-it
-coverage==7.6.1
+coverage==7.6.9
     # via
     #   -r requirements/test.in
     #   pytest-cov

requirements/test.txt

@@ -25,7 +25,7 @@ cffi==1.17.1
     #   pytest-codspeed
 click==8.1.8
     # via wait-for-it
-coverage==7.6.1
+coverage==7.6.9
     # via
     #   -r requirements/test.in
     #   pytest-cov