chore(deps): update dependency mkdocs-material to v9.1.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mkdocs-material	==9.1.5 -> ==9.1.6

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Release Notes

squidfunk/mkdocs-material

### [`v9.1.6`](https://togithub.com/squidfunk/mkdocs-material/releases/tag/9.1.6): mkdocs-material-9.1.6 [Compare Source](https://togithub.com/squidfunk/mkdocs-material/compare/9.1.5...9.1.6) - Updated Persian (Farsi) translations - Fixed [#​5300](https://togithub.com/squidfunk/mkdocs-material/issues/5300): Boxes in Mermaid sequence diagrams not color-abiding

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Configuration

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