Bump actions/setup-java from 1 to 2.3.1#11

dependabot[bot] wants to merge 1 commit intomasterscala-steward/scalajs-react-material-ui:masterfrom

dependabot/github_actions/actions/setup-java-2.3.1scala-steward/scalajs-react-material-ui:dependabot/github_actions/actions/setup-java-2.3.1Copy head branch name to clipboard