science/paraview: Fix build with gdal 3.13.0+
/wrkdirs/usr/ports/science/paraview/work/ParaView-v6.0.1/VTK/IO/GDAL/vtkGDALRasterReader.cxx:185:12: error: cannot initialize a variable of type 'char **' with an rvalue of type 'CSLConstList' (aka 'const char *const *')
185 | char** papszMetaData = GDALGetMetadata(this->GDALData, nullptr);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/wrkdirs/usr/ports/science/paraview/work/ParaView-v6.0.1/VTK/IO/GDAL/vtkGDALRasterReader.cxx:881:10: error: cannot initialize a variable of type 'char **' with an rvalue of type 'CSLConstList' (aka 'const char *const *')
881 | char** papszMetadata = GDALGetMetadata(this->Impl->GDALData, domain.c_str());
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2 errors generated.
Approved by: portmgr (blanket)