Update dependency mkdocs-material to v9.6.9

This MR contains the following updates:

Package	Update	Change
mkdocs-material (changelog)	patch	==9.6.7 -> ==9.6.9

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Release Notes

squidfunk/mkdocs-material (mkdocs-material)

v9.6.9: mkdocs-material-9.6.9

Compare Source

• Updated Serbo-Croatian translations
• Fixed #​8086: Custom SVG icons containing hashes break rendering
• Fixed #​8067: Drawer has gap on right side in Firefox on some OSs

v9.6.8: mkdocs-material-9.6.8

Compare Source

• Added Welsh translations
• Fixed #​8076: Privacy plugin crashes if HTTP download fails

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This MR has been generated by Renovate Bot.

mentioned in issue #73

mentioned in commit 1597b681

merged