Update dependency mkdocs-material to v9.4.9 (#253)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [mkdocs-material](https://togithub.com/squidfunk/mkdocs-material) |
`9.4.8` -> `9.4.9` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/mkdocs-material/9.4.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/mkdocs-material/9.4.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/mkdocs-material/9.4.8/9.4.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/mkdocs-material/9.4.8/9.4.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

###
[`v9.4.9`](https://togithub.com/squidfunk/mkdocs-material/releases/tag/9.4.9):
mkdocs-material-9.4.9

[Compare
Source](https://togithub.com/squidfunk/mkdocs-material/compare/9.4.8...9.4.9)

- Fixed
[#&#8203;6344](https://togithub.com/squidfunk/mkdocs-material/issues/6344):
Long entries cutoff in table of contents
- Fixed
[#&#8203;6336](https://togithub.com/squidfunk/mkdocs-material/issues/6336):
Custom template for glob archive not working with pagination
- Fixed
[#&#8203;6328](https://togithub.com/squidfunk/mkdocs-material/issues/6328):
Blog plugin crashes for locales with dashes, e.g. `pt-BR`
- Fixed
[#&#8203;6327](https://togithub.com/squidfunk/mkdocs-material/issues/6327):
Copy-to-clipboard button doesn't trim trailing line feed
- Fixed
[#&#8203;6302](https://togithub.com/squidfunk/mkdocs-material/issues/6302):
Version strings not matched when using mike, only aliases
- Fixed instant navigation progress indicator for gzipped content in
Chrome
-   Fixed rendering bug on details marker rotation in Firefox

</details>

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