[MacPorts] #67607: CI on GitHub are broken: Error: Process completed with exit code 60

[MacPorts]

#67607: CI on GitHub are broken: Error: Process completed with exit code 60
---------------------------+---------------------
 Reporter:  barracuda156   |      Owner:  admin@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  buildbot/mpbb  |    Version:  2.8.1
 Keywords:                 |       Port:
---------------------------+---------------------
 {{{
 Run . ports/.github/workflows/bootstrap.sh
 Fetching files
 Info
 Disabling Spotlight
 Uninstalling Homebrew
 Installing getopt
 Installing MacPorts
 Configuring MacPorts
 Updating PortIndex
   From https://github.com/macports/macports-ports
    * branch              master     -> FETCH_HEAD
    * [new branch]        master     -> macports/master
   Error: Process completed with exit code 60.
 }}}

 Everything fails now with the same silly error:
 https://github.com/macports/macports-ports/pull/19051
 https://github.com/macports/macports-ports/pull/19052
 https://github.com/macports/macports-ports/pull/19053

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Ticket URL: <https://trac.macports.org/ticket/67607>
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