[wp-trac] [WordPress Trac] #56095: Remove unnecessary Slack workflow runs for old branches

[WordPress Trac]

#56095: Remove unnecessary Slack workflow runs for old branches
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 Reporter:  desrosj           |       Owner:  desrosj
     Type:  task (blessed)    |      Status:  assigned
 Priority:  normal            |   Milestone:  6.1
Component:  Build/Test Tools  |     Version:
 Severity:  normal            |  Resolution:
 Keywords:  has-patch         |     Focuses:
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Comment (by desrosj):

 In [changeset:"53601" 53601]:
 {{{
 #!CommitTicketReference repository="" revision="53601"
 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], [50796], [50930], [51341], [51355], [51498],
 [51511], [51535], [51924], [51925], [51937], [52002], [52130], [52183],
 [52233], [53112], [53581], [53582], [53592] to the 5.4 branch.
 See #56095.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/56095#comment:32>
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