build(deps-dev): bump mkdocs-material from 9.1.15 to 9.1.21#345

dependabot[bot] wants to merge 1 commit intomainwhitemech/logaut:mainfrom

dependabot/pip/mkdocs-material-9.1.21whitemech/logaut:dependabot/pip/mkdocs-material-9.1.21Copy head branch name to clipboard