Bump mkdocs-section-index from 0.3.6 to 0.3.7 (#184)

Bumps
[mkdocs-section-index](https://github.com/oprypin/mkdocs-section-index)
from 0.3.6 to 0.3.7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/oprypin/mkdocs-section-index/releases">mkdocs-section-index's
releases</a>.</em></p>
<blockquote>
<h2>v0.3.7</h2>
<ul>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/0ee7339c5196f64691b79ecb9abe8891254bd9f1">Declare
that 'nature' theme is supported</a> - <a
href="https://redirect.github.com/oprypin/mkdocs-section-index/issues/19">#19</a></li>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/9bbe1bcf1f8d70043e9c43f9523ef611ee4642c1">Fix
setting the parent of a SectionPage</a> - this was resulting in
incorrect &quot;breadcrumbs&quot; display in &quot;readthedocs&quot;
theme</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/32e433f6f8387b9c645378462b3d34ccf4898782"><code>32e433f</code></a>
v0.3.7</li>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/9bbe1bcf1f8d70043e9c43f9523ef611ee4642c1"><code>9bbe1bc</code></a>
Fix setting the parent of a SectionPage</li>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/0ee7339c5196f64691b79ecb9abe8891254bd9f1"><code>0ee7339</code></a>
Declare that 'nature' theme is supported</li>
<li><a
href="https://github.com/oprypin/mkdocs-section-index/commit/b810a873289e2a58bf888486f5eb77c34a49ddae"><code>b810a87</code></a>
Switch to &quot;ruff&quot; linter, enable many of its rules</li>
<li>See full diff in <a
href="https://github.com/oprypin/mkdocs-section-index/compare/v0.3.6...v0.3.7">compare
view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=mkdocs-section-index&package-manager=pip&previous-version=0.3.6&new-version=0.3.7)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)

</details>

pyproject.toml

@@ -47,7 +47,7 @@ dev-mkdocs = [
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",
   "mkdocs-material == 9.3.1",
-  "mkdocs-section-index == 0.3.6",
+  "mkdocs-section-index == 0.3.7",
   "mkdocstrings[python] == 0.23.0",
   "frequenz-repo-config[lib] == 0.5.2",
 ]