Update dependency mkdocs-material to v9.2.8

This MR contains the following updates:

Package	Update	Change
mkdocs-material	patch	9.2.6 -> 9.2.8
mkdocs-material	patch	==9.2.6 -> ==9.2.8

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Release Notes

squidfunk/mkdocs-material

v9.2.8: mkdocs-material-9.2.8

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• Updated Italian and Russian translations
• Fixed #​5952: Combining blog and tags plugin leads to wrong links
• Fixed #​5951: Blog plugin ignores post title in metadata
• Fixed #​5949: Blog plugin ignores post linked in nav

v9.2.7: mkdocs-material-9.2.7

Compare Source

• Switched dependencies to compatible release clauses
• Removed readtime and lxml dependencies for blog plugin
• Reduced size of Docker image to improve CI build performance
• Fixed #​5945: Incorrect footer navigation for sibling pages of blog
• Fixed #​5939: Page jumps when changing color palette (Firefox 117)
• Fixed #​5901: Announcement bar reappears when using instant loading
• Fixed #​5824: Allow to customize styles of sequence diagrams

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