Bump coverage from 7.3.0 to 7.3.1 (#100)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.3.0 to
7.3.1.
<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 7.3.1 — 2023-09-06</h2>
<ul>
<li>
<p>The semantics of stars in file patterns has been clarified in the
docs. A
leading or trailing star matches any number of path components, like a
double
star would. This is different than the behavior of a star in the middle
of a
pattern. This discrepancy was <code>identified by Sviatoslav Sydorenko
&lt;starbad_&gt;</code><em>, who <code>provided patient detailed
diagnosis &lt;pull 1650_&gt;</code></em> and
graciously agreed to a pragmatic resolution.</p>
</li>
<li>
<p>The API docs were missing from the last version. They are now
<code>restored &lt;apidocs_&gt;</code>_.</p>
</li>
</ul>
<p>.. _apidocs: <a
href="https://coverage.readthedocs.io/en/latest/api_coverage.html">https://coverage.readthedocs.io/en/latest/api_coverage.html</a>
.. _starbad: <a
href="https://redirect.github.com/nedbat/coveragepy/issues/1407#issuecomment-1631085209">nedbat/coveragepy#1407</a>
.. _pull 1650: <a
href="https://redirect.github.com/nedbat/coveragepy/pull/1650">nedbat/coveragepy#1650</a></p>
<p>.. _changes_7-3-0:</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nedbat/coveragepy/commit/7ce94f12baa13932f25207dc42b88764fef3b3c7"><code>7ce94f1</code></a>
docs: sample HTML for 7.3.1</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/ac0021b3accc5b678efa62c25fc12403224b55ea"><code>ac0021b</code></a>
docs: prep for 7.3.1</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/508c27f0d564f8527903028d48336f9fd58ddfe9"><code>508c27f</code></a>
build(docs): have to install ourselves for api docs</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/6205c9fe7be3222cb594ae2a771fa32efdcbac48"><code>6205c9f</code></a>
style: pyupgrade --py38-plus --keep-runtime-typing</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/3b484e75a0bd66062566fc364f7957eee70f6d68"><code>3b484e7</code></a>
style: <code>from __future__ import annotations</code> in every .py file
with code</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/86955f2555132b4fc2c6ed11ebad951f11812314"><code>86955f2</code></a>
test/doc: add more tests of star behavior, and document it.</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/9d5ae8e5ed4de3d33dc01daaf73f395774d0d579"><code>9d5ae8e</code></a>
test: add regression test for path w/ trailing wildcard</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/f0c18f62bbc8c943f22337c79462d58b468d7ced"><code>f0c18f6</code></a>
style: use walrus for regexing</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/6afcdc35eae25960e94e71dcdba216644070b9c8"><code>6afcdc3</code></a>
chore: make upgrade</li>
<li><a
href="https://github.com/nedbat/coveragepy/commit/c2b238e86cade2e6163b24656a7d0549f4508e8f"><code>c2b238e</code></a>
docs: fury.io badge is lagging, switch to shields.io</li>
<li>Additional commits viewable in <a
href="https://github.com/nedbat/coveragepy/compare/7.3.0...7.3.1">compare
view</a></li>
</ul>
</details>
<br />


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</details>