Jonathan Desrosiers 987ba9162c Build/Test Tools: Use the Slack notifications workflow as a reusable one. ...

This backports several changesets that are required to remove the reliance on the `workflow_run` event for posting Slack notifications.

The Slack notification workflow will now be called as a reusable one, which has several benefits (see [53591]).

Several other minor GitHub Actions related updates are also being backported in this commit to maintain tooling consistency across branches that still receive security updates as a courtesy when necessary.

Workflows that are not relevant to this branch that were mistakenly backported are also being deleted.

Merges [50473], [50704], [50930], [51341], [51355], [51498], [51511], [51535], [51924], [51925], [51937], [52002], [52130], [52183], [52233], [53112], [53581], [53582], [53592] to the 4.3 branch.
See #56095.

git-svn-id: https://develop.svn.wordpress.org/branches/4.3@53618 602fd350-edb4-49c9-b593-d223f7449a82

2022-06-30 17:20:41 +00:00

..

workflows

Build/Test Tools: Use the Slack notifications workflow as a reusable one.

2022-06-30 17:20:41 +00:00