Bump pip from 23.1.2 to 23.2.1 (#165)

Bumps [pip](https://github.com/pypa/pip) from 23.1.2 to 23.2.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/pip/blob/main/NEWS.rst">pip's
changelog</a>.</em></p>
<blockquote>
<h1>23.2.1 (2023-07-22)</h1>
<h2>Bug Fixes</h2>
<ul>
<li>Disable PEP 658 metadata fetching with the legacy resolver.
(<code>[#12156](pypa/pip#12156)
&lt;https://github.com/pypa/pip/issues/12156&gt;</code>_)</li>
</ul>
<h1>23.2 (2023-07-15)</h1>
<h2>Process</h2>
<ul>
<li>Deprecate support for eggs for Python 3.11 or later, when the new
<code>importlib.metadata</code> backend is used to load distribution
metadata. This only affects the egg <em>distribution format</em> (with
the <code>.egg</code> extension); distributions using the
<code>.egg-info</code> <em>metadata format</em> (but are not actually
eggs) are not affected. For more information about eggs, see
<code>relevant section in the setuptools documentation
&lt;https://setuptools.pypa.io/en/stable/deprecated/python_eggs.html&gt;</code>__.</li>
</ul>
<h2>Deprecations and Removals</h2>
<ul>
<li>Deprecate legacy version and version specifiers that don't conform
to <code>PEP 440 &lt;https://peps.python.org/pep-0440/&gt;</code>_
(<code>[#12063](pypa/pip#12063)
&lt;https://github.com/pypa/pip/issues/12063&gt;</code>_)</li>
<li><code>freeze</code> no longer excludes the <code>setuptools</code>,
<code>distribute</code>, and <code>wheel</code>
from the output when running on Python 3.12 or later, where they are not
included in a virtual environment by default. Use <code>--exclude</code>
if you wish to
exclude any of these packages.
(<code>[#4256](pypa/pip#4256)
&lt;https://github.com/pypa/pip/issues/4256&gt;</code>_)</li>
</ul>
<h2>Features</h2>
<ul>
<li>make rejection messages slightly different between 1 and 8, so the
user can make the difference.
(<code>[#12040](pypa/pip#12040)
&lt;https://github.com/pypa/pip/issues/12040&gt;</code>_)</li>
</ul>
<h2>Bug Fixes</h2>
<ul>
<li>Fix <code>pip completion --zsh</code>.
(<code>[#11417](pypa/pip#11417)
&lt;https://github.com/pypa/pip/issues/11417&gt;</code>_)</li>
<li>Prevent downloading files twice when PEP 658 metadata is present
(<code>[#11847](pypa/pip#11847)
&lt;https://github.com/pypa/pip/issues/11847&gt;</code>_)</li>
<li>Add permission check before configuration
(<code>[#11920](pypa/pip#11920)
&lt;https://github.com/pypa/pip/issues/11920&gt;</code>_)</li>
<li>Fix deprecation warnings in Python 3.12 for usage of shutil.rmtree
(<code>[#11957](pypa/pip#11957)
&lt;https://github.com/pypa/pip/issues/11957&gt;</code>_)</li>
<li>Ignore invalid or unreadable <code>origin.json</code> files in the
cache of locally built wheels.
(<code>[#11985](pypa/pip#11985)
&lt;https://github.com/pypa/pip/issues/11985&gt;</code>_)</li>
<li>Fix installation of packages with PEP658 metadata using
non-canonicalized names
(<code>[#12038](pypa/pip#12038)
&lt;https://github.com/pypa/pip/issues/12038&gt;</code>_)</li>
<li>Correctly parse <code>dist-info-metadata</code> values from
JSON-format index data.
(<code>[#12042](pypa/pip#12042)
&lt;https://github.com/pypa/pip/issues/12042&gt;</code>_)</li>
<li>Fail with an error if the <code>--python</code> option is specified
after the subcommand name.
(<code>[#12067](pypa/pip#12067)
&lt;https://github.com/pypa/pip/issues/12067&gt;</code>_)</li>
<li>Fix slowness when using <code>importlib.metadata</code> (the default
way for pip to read metadata in Python 3.11+) and there is a large
overlap between already installed and to-be-installed packages.
(<code>[#12079](pypa/pip#12079)
&lt;https://github.com/pypa/pip/issues/12079&gt;</code>_)</li>
<li>Pass the <code>-r</code> flag to mercurial to be explicit that a
revision is passed and protect
against <code>hg</code> options injection as part of VCS URLs. Users
that do not have control on
VCS URLs passed to pip are advised to upgrade.
(<code>[#12119](pypa/pip#12119)
&lt;https://github.com/pypa/pip/issues/12119&gt;</code>_)</li>
</ul>
<h2>Vendored Libraries</h2>
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</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pypa/pip/commit/4a79e65cb6aac84505ad92d272a29f0c3c1aedce"><code>4a79e65</code></a>
Bump for release</li>
<li><a
href="https://github.com/pypa/pip/commit/81a0711192c32126a7b11d6898677274cdbc40b5"><code>81a0711</code></a>
Update AUTHORS.txt</li>
<li><a
href="https://github.com/pypa/pip/commit/1d4674c38950fe01d138a57524799473a2341bb7"><code>1d4674c</code></a>
Merge pull request <a
href="https://github.com/pypa/pip/issues/12163">#12163</a> from
pfmoore/fix_12156</li>
<li><a
href="https://github.com/pypa/pip/commit/39aa7ed50e26d77a4a277fa525add44b6f7b3bcd"><code>39aa7ed</code></a>
Fix a direct creation of RequirementPreparer in the tests</li>
<li><a
href="https://github.com/pypa/pip/commit/c12139de9b51da9947d3b36b4f0e2e0c8f467663"><code>c12139d</code></a>
Disable PEP 658 for the legacy resolver</li>
<li><a
href="https://github.com/pypa/pip/commit/593b85f4abd30688648436bb9baca3b8f7b32b51"><code>593b85f</code></a>
Use strict optional checking in misc.py (<a
href="https://github.com/pypa/pip/issues/11382">#11382</a>)</li>
<li><a
href="https://github.com/pypa/pip/commit/b252ad819bc7b998508a7ed8789b60dceddfd603"><code>b252ad8</code></a>
Merge pull request <a
href="https://github.com/pypa/pip/issues/12148">#12148</a> from
mtreinish/patch-1</li>
<li><a
href="https://github.com/pypa/pip/commit/26814251c04f459dce8e9502aa42eebdb125ee20"><code>2681425</code></a>
Correct typo in 23.2 Changelog Bug Fixes</li>
<li><a
href="https://github.com/pypa/pip/commit/1d5b12063d8656a2d1c2eebaee83ed530b642e48"><code>1d5b120</code></a>
Merge pull request <a
href="https://github.com/pypa/pip/issues/12145">#12145</a> from
pfmoore/release/23.2</li>
<li><a
href="https://github.com/pypa/pip/commit/b6a2670599ded25ffcebc33b5c8b583ccef87f27"><code>b6a2670</code></a>
Bump for development</li>
<li>Additional commits viewable in <a
href="https://github.com/pypa/pip/compare/23.1.2...23.2.1">compare
view</a></li>
</ul>
</details>
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