⬆️ Update mkdocs-material to v9.1.12

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mkdocs-material	==9.1.11 -> ==9.1.12

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Release Notes

squidfunk/mkdocs-material

### [`v9.1.12`](https://togithub.com/squidfunk/mkdocs-material/releases/tag/9.1.12): mkdocs-material-9.1.12 [Compare Source](https://togithub.com/squidfunk/mkdocs-material/compare/9.1.11...9.1.12) - Updated Bengali (Bangla) translations - Fixed [#​5503](https://togithub.com/squidfunk/mkdocs-material/issues/5503): Docker image publish errors on uppercase characters - Fixed [#​5407](https://togithub.com/squidfunk/mkdocs-material/issues/5407): Auto-pause media when in hidden content tabs

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