[MacPorts] #63974: GitHub CI: update PR workflow to cancel outdated jobs on push

[MacPorts]

#63974: GitHub CI: update PR workflow to cancel outdated jobs on push
-----------------------------+-----------------------
  Reporter:  mascguy         |      Owner:  mascguy
      Type:  enhancement     |     Status:  closed
  Priority:  Normal          |  Milestone:
 Component:  server/hosting  |    Version:  2.7.1
Resolution:  fixed           |   Keywords:  github ci
      Port:                  |
-----------------------------+-----------------------
Changes (by catap):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"b393b525915330151c02afb7d723ee53d65c4c6f/macports-ports"
 b393b525915330151c02afb7d723ee53d65c4c6f/macports-ports] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="b393b525915330151c02afb7d723ee53d65c4c6f"
 github ci: cancel outdated jobs on push
 Fixes: https://trac.macports.org/ticket/63974
 }}}

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Ticket URL: <https://trac.macports.org/ticket/63974#comment:3>
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