chore(deps-dev): bump pydoclint from 0.9.0 to 0.9.1 (#116)

Bumps [pydoclint](https://github.com/jsh9/pydoclint) from 0.9.0 to
0.9.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/jsh9/pydoclint/releases">pydoclint's
releases</a>.</em></p>
<blockquote>
<h2>0.9.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Switch from mypy to ty; fix typing issues by <a
href="https://github.com/jsh9"><code>@​jsh9</code></a> in <a
href="https://redirect.github.com/jsh9/pydoclint/pull/294">jsh9/pydoclint#294</a></li>
<li>Update muff version and fix linting issues by <a
href="https://github.com/jsh9"><code>@​jsh9</code></a> in <a
href="https://redirect.github.com/jsh9/pydoclint/pull/295">jsh9/pydoclint#295</a></li>
<li>Fix numpy default checks for breaking changes in
docstring_parser_fork by <a
href="https://github.com/jsh9"><code>@​jsh9</code></a> in <a
href="https://redirect.github.com/jsh9/pydoclint/pull/296">jsh9/pydoclint#296</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/jsh9/pydoclint/compare/0.9.0...0.9.1">https://github.com/jsh9/pydoclint/compare/0.9.0...0.9.1</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/jsh9/pydoclint/blob/main/CHANGELOG.md">pydoclint's
changelog</a>.</em></p>
<blockquote>
<h2>[0.9.1] - 2026-07-03</h2>
<ul>
<li>Fixed
<ul>
<li>Restored numpy docstring default checking with
<code>docstring_parser_fork==0.0.16</code>, which preserves raw
parameter and
attribute type declarations while still exposing normalized type/default
fields</li>
</ul>
</li>
<li>Changed
<ul>
<li>Replaced tox type checking from <code>mypy</code> with
<code>ty</code> and fixed the surfaced
typing issues with explicit type narrowing</li>
<li>Run the <code>tox -e pydoclint</code> self-check against the local
package instead of
the latest published pydoclint release</li>
<li>Updated Muff tooling to <code>0.15.20</code> and added a pre-commit
hook to keep the
tox Muff pins in sync with the <code>muff-pre-commit</code>
revision</li>
</ul>
</li>
<li>Full diff
<ul>
<li><a
href="https://github.com/jsh9/pydoclint/compare/0.9.0...0.9.1">https://github.com/jsh9/pydoclint/compare/0.9.0...0.9.1</a></li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jsh9/pydoclint/commit/cf8f4d0b81f933ebc5414acadcf7acdab705baa1"><code>cf8f4d0</code></a>
Fix numpy default checks for breaking changes in docstring_parser_fork
(<a
href="https://redirect.github.com/jsh9/pydoclint/issues/296">#296</a>)</li>
<li><a
href="https://github.com/jsh9/pydoclint/commit/f908148862dd837fae4023343479f5dfe58986ba"><code>f908148</code></a>
Update muff version and fix linting issues (<a
href="https://redirect.github.com/jsh9/pydoclint/issues/295">#295</a>)</li>
<li><a
href="https://github.com/jsh9/pydoclint/commit/b3fb48806690a0406eb8729930f5191c7479881c"><code>b3fb488</code></a>
Switch from mypy to ty; fix typing issues (<a
href="https://redirect.github.com/jsh9/pydoclint/issues/294">#294</a>)</li>
<li>See full diff in <a
href="https://github.com/jsh9/pydoclint/compare/0.9.0...0.9.1">compare
view</a></li>
</ul>
</details>
<br />

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</details>

Author: frequenz-auto-dependabot[bot]

pyproject.toml

@@ -67,7 +67,7 @@ dev-flake8 = [
   "flake8-datetimez == 20.10.0",
   "flake8-docstrings == 1.7.0",
   "flake8-pyproject == 1.2.4",  # For reading the flake8 config from pyproject.toml
-  "pydoclint == 0.9.0",
+  "pydoclint == 0.9.1",
   "pydocstyle == 6.3.0",
 ]
 dev-formatting = ["black == 26.5.1", "isort == 8.0.1"]