Update dependency mkdocs-material to v9.5.19 (#338)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [mkdocs-material](https://togithub.com/squidfunk/mkdocs-material)
([changelog](https://squidfunk.github.io/mkdocs-material/changelog/)) |
`9.5.18` -> `9.5.19` |
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|
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|
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|
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|

---

### Release Notes

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

###
[`v9.5.19`](https://togithub.com/squidfunk/mkdocs-material/releases/tag/9.5.19):
mkdocs-material-9.5.19

[Compare
Source](https://togithub.com/squidfunk/mkdocs-material/compare/9.5.18...9.5.19)

-   Updated MkDocs to 1.6 and limited version to < 2
-   Updated Docker image to latest Alpine Linux
- Removed `setup.py`, now that GitHub fully understands `pyproject.toml`
-   Improved interop of social plugin with third-party MkDocs themes
- Fixed
[#&#8203;7099](https://togithub.com/squidfunk/mkdocs-material/issues/7099):
Blog reading time not rendered correctly for Japanese
- Fixed
[#&#8203;7097](https://togithub.com/squidfunk/mkdocs-material/issues/7097):
Improved resilience of tags plugin when no tags are given
- Fixed
[#&#8203;7090](https://togithub.com/squidfunk/mkdocs-material/issues/7090):
Active tab indicator in nested content tabs rendering bug

</details>

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