[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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Changes (by lstolcman):

 * Attachment "example.tif" added.

 file to reproduce the issue
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5901>
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