[PostGIS] #5780: Random errors on GHA postgis install some sort of incomplete scripts

[PostGIS]

#5780: Random errors on GHA postgis install some sort of incomplete scripts
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  Reporter:  robe     |      Owner:  strk
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 3.5.0
 Component:  install  |    Version:  master
Resolution:           |   Keywords:
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Comment (by strk):

 Temptative fix in [be1c2273cdfe0490a43b0148bb8f18ce57a63916/git]
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5780#comment:3>
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