chore(deps): update dependency mkdocs-material to v9.6.9 (#75)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [mkdocs-material](https://github.com/squidfunk/mkdocs-material) ([changelog](https://squidfunk.github.io/mkdocs-material/changelog/)) | dependency-groups | minor | `==9.5.50` -> `==9.6.9` |

---

### Release Notes

<details>
<summary>squidfunk/mkdocs-material (mkdocs-material)</summary>

### [`v9.6.9`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.9): mkdocs-material-9.6.9

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.8...9.6.9)

-   Updated Serbo-Croatian translations
-   Fixed [#&#8203;8086](https://github.com/squidfunk/mkdocs-material/issues/8086): Custom SVG icons containing hashes break rendering
-   Fixed [#&#8203;8067](https://github.com/squidfunk/mkdocs-material/issues/8067): Drawer has gap on right side in Firefox on some OSs

### [`v9.6.8`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.8): mkdocs-material-9.6.8

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.7...9.6.8)

-   Added Welsh translations
-   Fixed [#&#8203;8076](https://github.com/squidfunk/mkdocs-material/issues/8076): Privacy plugin crashes if HTTP download fails

### [`v9.6.7`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.7): mkdocs-material-9.6.7

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.6...9.6.7)

-   Fixed [#&#8203;8056](https://github.com/squidfunk/mkdocs-material/issues/8056): Error in backrefs implementation (9.6.6 regression)
-   Fixed [#&#8203;8054](https://github.com/squidfunk/mkdocs-material/issues/8054): Unescaped quotes in ARIA labels of table of contents

### [`v9.6.6`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.6): mkdocs-material-9.6.6

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.5...9.6.6)

-   Fixed [#&#8203;8040](https://github.com/squidfunk/mkdocs-material/issues/8040): Privacy plugin not replacing exteral assets (9.6.5 regression)
-   Fixed [#&#8203;8031](https://github.com/squidfunk/mkdocs-material/issues/8031): Replace unmaintained `regex` package in search plugin

### [`v9.6.5`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.5): mkdocs-material-9.6.5

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.4...9.6.5)

-   Fixed [#&#8203;8016](https://github.com/squidfunk/mkdocs-material/issues/8016): Tags listing not showing when when file name has spaces
-   Fixed [#&#8203;8012](https://github.com/squidfunk/mkdocs-material/issues/8012): Privacy plugin crashes if HTTP download fails

### [`v9.6.4`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.4): mkdocs-material-9.6.4

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.3...9.6.4)

-   Fixed [#&#8203;7985](https://github.com/squidfunk/mkdocs-material/issues/7985): Blog content sometimes not stretching to full width
-   Fixed [#&#8203;7978](https://github.com/squidfunk/mkdocs-material/issues/7978): Navigation rendering bug in Safari 18.3

### [`v9.6.3`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.3): mkdocs-material-9.6.3

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.2...9.6.3)

-   Fixed rendering of arrow heads in Mermaid.js class diagrams
-   Fixed [#&#8203;7960](https://github.com/squidfunk/mkdocs-material/issues/7960): Tags plugin crashes on numeric metadata titles

### [`v9.6.2`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.2): mkdocs-material-9.6.2

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.1...9.6.2)

-   Fixed [#&#8203;7955](https://github.com/squidfunk/mkdocs-material/issues/7955): Excessively long words don't break on narrow screens
-   Fixed [#&#8203;7947](https://github.com/squidfunk/mkdocs-material/issues/7947): Scope setting interferes with outdated version banner

### [`v9.6.1`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.1): mkdocs-material-9.6.1

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.6.0...9.6.1)

-   Fixed [#&#8203;7943](https://github.com/squidfunk/mkdocs-material/issues/7943): Tags plugin crashing due to merge error

### [`v9.6.0`](https://github.com/squidfunk/mkdocs-material/releases/tag/9.6.0): mkdocs-material-9.6.0

[Compare Source](https://github.com/squidfunk/mkdocs-material/compare/9.5.50...9.6.0)

-   Added meta plugin
-   Rewrite of the tags plugin
-   Added support for allow lists in tags plugin
-   Added support for and custom sorting in tags plugin
-   Added support for related links in blog plugin
-   Added support for custom index pages in blog plugin
-   Added support for navigation subtitles
-   Fixed [#&#8203;7924](https://github.com/squidfunk/mkdocs-material/issues/7924): Anchors might require two clicks when using instant navigation

</details>

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Reviewed-on: #75
Co-authored-by: Renovate <renovate@csw.im>
Co-committed-by: Renovate <renovate@csw.im>

pyproject.toml

@@ -27,7 +27,7 @@ documentation = [
   "mkdocs==1.6.1",
   "mkdocs-git-authors-plugin==0.9.4",
   "mkdocs-git-revision-date-localized-plugin==1.3.0",
-  "mkdocs-material[imaging]==9.5.50",
+  "mkdocs-material[imaging]==9.6.9",
   "mkdocs-redirects==1.2.2",
   "mkdocstrings[python]==0.27.0",
 ]