False positive on MOAB/DAGMC CI tests

[gonuke]

Describe the Bug

CI tests report success for MOAB & DAGMC stages even if MOAB is not found.

Because PyNE has been written to be compliant, it gracefully continues to build even if MOAB is not present/found. Relevant unit tests are configured to be skipped if MOAB/DAGMC are not found, and thus don't report failure.

We need to establish a test regimen that results in failure if MOAB is not found. Perhaps a build option to make MOAB "REQUIRED"?

See #1537 for user experience.

[ahnaf-tahmid-chowdhury]

I have already fixed these issues in the scikit-build-core branch. I also added new features to download optional packages if users requested them. I am now working on solving #1536, and after that, I hope all the tests will pass on my branch and ready to make a new PR on the develop branch.

[gonuke]

We should update our setup/build process to make MOAB and DAGMC required if they are requested at build time - should only require a small change to CMakeLists.txt

[ahnaf-tahmid-chowdhury]

I have already addressed this in #1526. I also believe we need to update the FindMOAB file as well to support the latest version of MOAB. Please let me know how you would like to proceed.

[gonuke]

Thanks @ahnaf-tahmid-chowdhury - I am now better understanding all the issues. I'll review #1526 for merge soon

[ahnaf-tahmid-chowdhury]

Fixed #1526