build(deps): bump mkdocs-material from 9.6.20 to 9.6.21#153

dependabot[bot] wants to merge 1 commit intomainFocusFish/focusfish.github.io:mainfrom

dependabot/pip/mkdocs-material-9.6.21FocusFish/focusfish.github.io:dependabot/pip/mkdocs-material-9.6.21Copy head branch name to clipboard