Bump mkdocs-material from 9.2.5 to 9.2.6

Bumps mkdocs-material from 9.2.5 to 9.2.6.

Release notes

Sourced from mkdocs-material's releases.

mkdocs-material-9.2.6

• Added Basque translations
• Added template for simple redirects
• Improved blog plugin interop by moving view generation to on_files
• Fixed #5924: Social plugin still checks dependencies when disabled
• Fixed #5916: Blog plugin crashes on Python 3.8 (9.2.0 regression)

Commits

• 1cb61a9 Merge branch 'master' of github.com:squidfunk/mkdocs-material
• aabc68d Prepare 9.2.6 release
• df4515c Documentation (#5927)
• d0ac21e Updated icon search index (#5920)
• 5540496 Added Basque translations
• ad45cf3 Fixed social plugin checking dependencies albeit being disabled
• f2512de Fixed blog plugin compatibility with Python < 3.9
• 4c6b004 Refactored blog plugin view generation
• fb18b20 Updated dependencies
• de0c5b7 Documentation
• Additional commits viewable in compare view