fix: constrain dxchange version to fix ZeissDataReader

[JeppeKlitgaard]

Ensures that fix to #2256 released in dxchange version 0.2.1 is used by setting lower version constraint.

Fixes #2256

[JeppeKlitgaard]

This is ready for review

[hrobarts]

Thanks for this @JeppeKlitgaard!
I tested this with our Zeiss example and it works as expected so I'm happy to approve

I guess the version needs updating here as well
https://github.com/TomographicImaging/scripts/blob/main/env/cil_demos.yml
https://github.com/TomographicImaging/scripts/blob/main/env/cil_demos_cpu.yml
https://github.com/TomographicImaging/scripts/blob/main/env/cil_test.yml

[JeppeKlitgaard]

Thanks for this @JeppeKlitgaard! I tested this with our Zeiss example and it works as expected so I'm happy to approve

I guess the version needs updating here as well TomographicImaging/scripts@main/env/cil_demos.yml TomographicImaging/scripts@main/env/cil_demos_cpu.yml TomographicImaging/scripts@main/env/cil_test.yml

Yes, that would be preferable. In principle it will resolve to the fixed version anyway unless something else constrains the version like a lock file or other dependency.

I think these should also be changed to using https://tomography.stfc.ac.uk/conda instead of the ccpi channel at some point, as part of #1870.

I am happy to submit a PR over there as well to pin these versions.