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

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mkdocs-material	==8.5.11 -> ==9.0.0

---

Release Notes

squidfunk/mkdocs-material

v9.0.0: mkdocs-material-9.0.0

Compare Source

Additions and improvements

• Added support for rich search previews
• Added support for tokenizer lookahead
• Added support for better search highlighting
• Added support for excluding content from search
• Added support for configurable search pipeline
• Added support for offline search via offline plugin
• Added support for multiple instances of built-in tags plugin
• Added support for removing copy-to-clipboard button
• Added support for removing footer navigation
• Added support for button to view the source of a page
• Improved readability of query string for search sharing
• Improved stability of search plugin when using --dirtyreload
• Improved search result group button, now sticky and stable
• Updated Norwegian translations
• Updated MkDocs to 1.4.2

Removals

• Removed deprecated alternative admonition qualifiers
• Removed :is() selectors (in output) for easier overriding
• Removed .title suffix on translations
• Removed legacy method for providing page title in feedback URL
• Removed support for indexing only titles in search
• Removed support for custom search transforms
• Removed support for custom search workers
• Removed temporary snow feature (easter egg)

Fixes

• Fixed Norwegian and Korean language code
• Fixed detection of composition events in search interface
• Fixed search plugin not using title set via front matter
• Fixed search highlighting of tags
• Fixed search sharing URL using post transformed string
• Fixed theme-color meta tag getting out-of-sync with palette toggle
• Fixed prev/next page keyboard navigation when footer is not present
• Fixed overflowing navigation tabs not being scrollable
• Fixed inclusion of code block line numbers from search

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[renovate]

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.
You can manually request rebase by checking the rebase/retry box above.

⚠ Warning: custom changes will be lost.