Bump mkdocs-material from 9.6.12 to 9.6.13#9

dependabot[bot] wants to merge 1 commit intomainks6088ts-labs/workshop-playwright-python:mainfrom

dependabot/uv/mkdocs-material-9.6.13ks6088ts-labs/workshop-playwright-python:dependabot/uv/mkdocs-material-9.6.13Copy head branch name to clipboard