Bump julia-actions/cache from 2.1.0 to 3.0.0#12

dependabot[bot] wants to merge 1 commit intomainJuliaLang/backporter-github-actions-workflows:mainfrom

dependabot/github_actions/julia-actions/cache-3.0.0JuliaLang/backporter-github-actions-workflows:dependabot/github_actions/julia-actions/cache-3.0.0Copy head branch name to clipboard