ParaView: download ældre versioner

Notable additions in ParaView 6.1.0 include ANARI rendering integration, a USD scene exporter, improved plotting of Partitioned Dataset Collections in chart representations, a statistical analysis refactor, and selections saved/loaded from state files.

- Bug fixes made since ParaView 6.0.0 are listed below:
- The "Fast" color map, which is the new default in ParaView 6.0.0, was not correctly defined in the ParaView 6.0.0 release. Its color space was set to "Diverging" rather than "Lab". As a result, the central lightest point in the color map was shifted to the left of center and was too bright.
- Comparison of incorrect "Fast" color map in ParaView 6.0.0 (upper legend) vs. corrected "Fast" color map in ParaView 6.0.1 (lower legend).

- Update Insitu logic to use script filename (instead of full path) when searching PYTHONPATH directories
- Fixed CLI error loading multiple-file series
- Fixed CLI error that was opening two copies of single file specified in command line
- Fixed pvbatch syntax warning messages (“invalid escape sequence”)
- Fixed spreadsheet view to update correctly when timestep is reset to 0
- Fixed problems loading state file when remote volume rendering is used