There are several common reoccurring issues that sometimes cause GitHub Action workflows to fail (connection timeouts to WordPress.org or the Docker container registry, `npm install` failures, Chromium issues, etc.). Except when there are service level outages, most of these issues can be resolved by simply rerunning the workflow.
This introduces a new step within each of Core’s GitHub Action workflows that attempts to rerun the failed jobs within the workflow that encountered a failure if they are running for the first time. Since a workflow is not allowed to restart itself, a new `failed-workflow.yml` callable workflow is being introduced.
Other related adjustments in this changeset:
- The `actions/github-script` 3rd-party action is also now updated to the latest version (v6.2.0).
- A new secret, `GHA_WORKFLOW_DISPATCH`, has been introduced. This will replace the current one in use (`GHA_OLD_BRANCH_DISPATCH`) with a less specific name.
Props jorbin, desrosj.
Fixes#56407.
git-svn-id: https://develop.svn.wordpress.org/trunk@53947 602fd350-edb4-49c9-b593-d223f7449a82
