Bump mkdocs-material from 8.2.1 to 9.1.1#53

dependabot[bot] wants to merge 1 commit intomasterarimer/mps.rocks:masterfrom

dependabot/pip/mkdocs-material-9.1.1arimer/mps.rocks:dependabot/pip/mkdocs-material-9.1.1Copy head branch name to clipboard