GH Actions: add workflow to label PRs which are in a conflict state#183

jrfnl merged 1 commit intostablePHPCSStandards/PHPCSDevTools:stablefrom

feature/ghactions-add-merge-conflict-workflowPHPCSStandards/PHPCSDevTools:feature/ghactions-add-merge-conflict-workflowCopy head branch name to clipboard