Update dependency mkdocs-material to v9.1.9

This MR contains the following updates:

Package	Update	Change
mkdocs-material	patch	9.1.8 -> 9.1.9
mkdocs-material	patch	==9.1.8 -> ==9.1.9

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Release Notes

squidfunk/mkdocs-material

v9.1.9: mkdocs-material-9.1.9

Compare Source

• Added Telugu, Kannada and Sanskrit translations
• Fixed #​5428: Fixed margins for light/dark mode images in figures
• Fixed #​5420: Social plugin crashing for some specific Google Fonts
• Fixed #​5160: Instant loading makes code annotations jump (9.1.1 regression)
• Fixed #​4920: Social plugin not loading logo from custom icon set
• Fixed social plugin crashing when only code font is specified

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