Add optional parameter to alignment methods and handle catalog web service connection issues.

[mairanteodoro]

Resolves RCAL-908

This PR add an optional parameter -- clip_accum -- to the alignment methods in stcal.tweakreg. This is necessary because JWST and Roman do not use the same value when it comes to that parameter. The default value for that parameter in align_wcs() is False, which is what JWST uses. However, clip_accum=True seems to significantly improve the fitting results for Roman (as compared with clip_accum=False).

This PR also adds the ability to better handle catalog web services connectivity issues.

Checklist

• [x] for a public change, added a towncrier news fragment in changes/:

  echo "changed something" > changes/<PR#>.<changetype>.rst

  • changes/<PR#>.apichange.rst: change to public API
  • changes/<PR#>.bugfix.rst: fixes an issue
  • changes/<PR#>.general.rst: infrastructure or miscellaneous change
• [x] updated relevant tests
• [ ] updated relevant documentation
• [ ] updated relevant milestone(s)
• [ ] added relevant label(s)

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 91.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 84.65%. Comparing base (d85f859) to head (886ba82). Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
src/stcal/tweakreg/astrometric_utils.py	75.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #286 +/- ## ========================================== + Coverage 84.63% 84.65% +0.02% ========================================== Files 41 41 Lines 7628 7651 +23 ========================================== + Hits 6456 6477 +21 - Misses 1172 1174 +2 ```

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[mairanteodoro]

Why did you add the no_changelog_entry_needed tag?

I did that temporarily -- it's still a draft PR. I am working on the changelog entry now.