Sync eng/common directory with azure-sdk-tools for PR 11726#35613

azure-sdk merged 2 commits intomainAzure/azure-sdk-for-js:mainfrom

sync-eng/common-update_release_plan_completion_script-11726Azure/azure-sdk-for-js:sync-eng/common-update_release_plan_completion_script-11726Copy head branch name to clipboard