[PostGIS] #5901: raster2pgsql does not work with gdal 3.7+ due to new int8 datatype

[PostGIS]

#5901: raster2pgsql does not work with gdal 3.7+ due to new int8 datatype
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  Reporter:  lstolcman  |      Owner:  pramsey
      Type:  defect     |     Status:  new
  Priority:  medium     |  Milestone:  PostGIS 3.5.4
 Component:  postgis    |    Version:
Resolution:             |   Keywords:
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Comment (by lstolcman):

 The "float16" pixel type added in
 https://gdal.org/en/stable/development/rfc/rfc100_float16_support.html may
 be taken into account as well
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5901#comment:2>
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