[PostGIS] #5652: Upgrade raster tests running even if postgis raster is disabled

[PostGIS]

#5652: Upgrade raster tests running even if postgis raster is disabled
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  Reporter:  robe     |      Owner:  strk
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 3.5.0
 Component:  upgrade  |    Version:  master
Resolution:           |   Keywords:
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Comment (by robe):

 See #5656 a real user being inconvenienced by this bug.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5652#comment:2>
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