[PostGIS] #6067: MacOS CI and winnie failing on topology topogeo_addlinestring, validatetopology

[PostGIS]

#6067: MacOS CI and winnie failing on topology topogeo_addlinestring,
validatetopology
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  Reporter:  robe      |      Owner:  strk
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 3.7.0
 Component:  topology  |    Version:  master
Resolution:            |   Keywords:
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Comment (by robe):

 Fixed validatetopology too on winnie, but I see the addlinestring one is
 still failing on both MacOS and winnie.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/6067#comment:8>
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