Bump pydoclint from 0.8.5 to 0.8.6 (#87)

Bumps [pydoclint](https://github.com/jsh9/pydoclint) from 0.8.5 to
0.8.6.
<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>0.8.6</h2>
<h2>What's Changed</h2>
<ul>
<li>Report unsupported docstring headers (numpy) as DOC001 by <a
href="https://github.com/jsh9"><code>@​jsh9</code></a> in <a
href="https://redirect.github.com/jsh9/pydoclint/pull/290">jsh9/pydoclint#290</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/jsh9/pydoclint/compare/0.8.5...0.8.6">https://github.com/jsh9/pydoclint/compare/0.8.5...0.8.6</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>[0.8.6] - 2026-06-03</h2>
<ul>
<li>Fixed
<ul>
<li>A bug where <code>DOC001</code> did not intercept unsupported numpy
docstring section
headers such as <code>Inputs</code>, <code>Outputs</code>, and non-ASCII
names, and as a result
pydoclint would report confusing cascading violations</li>
</ul>
</li>
<li>Full diff
<ul>
<li><a
href="https://github.com/jsh9/pydoclint/compare/0.8.5...0.8.6">https://github.com/jsh9/pydoclint/compare/0.8.5...0.8.6</a></li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jsh9/pydoclint/commit/da69fbd1c05ff6f4ec46bf9be17a27e06601f076"><code>da69fbd</code></a>
Report unsupported docstring headers (numpy) as DOC001 (<a
href="https://redirect.github.com/jsh9/pydoclint/issues/290">#290</a>)</li>
<li>See full diff in <a
href="https://github.com/jsh9/pydoclint/compare/0.8.5...0.8.6">compare
view</a></li>
</ul>
</details>
<br />

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Author: frequenz-auto-dependabot[bot]

pyproject.toml

@@ -42,7 +42,7 @@ 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 == 0.8.5",
+  "pydoclint == 0.8.6",
   "pydocstyle == 6.3.0",
 ]
 dev-formatting = ["black == 26.5.1", "isort == 8.0.1"]