Switch skymatch to use stcal

[WilliamJamieson]

The shared skymatch code by romancal and jwst has been moved into stcal by spacetelescope/stcal#310. This PR switches romancal's skymatch to use this code.

Tasks

• request a review from someone specific, to avoid making the maintainers review every PR
• add a build milestone, i.e. 24Q4_B15 (use the latest build if not sure)
• Does this PR change user-facing code / API? (if not, label with no-changelog-entry-needed)
  • write news fragment(s) in changes/: echo "changed something" > changes/<PR#>.<changetype>.rst (see below for change types)
  • update or add relevant tests
  • update relevant docstrings and / or docs/ page
  • start a regression test and include a link to the running job (click here for instructions)
    • Do truth files need to be updated ("okified")?
      • after the reviewer has approved these changes, run okify_regtests to update the truth files
• if a JIRA ticket exists, make sure it is resolved properly

news fragment change types...

• changes/<PR#>.general.rst: infrastructure or miscellaneous change
• changes/<PR#>.docs.rst
• changes/<PR#>.stpipe.rst
• changes/<PR#>.associations.rst
• changes/<PR#>.scripts.rst
• changes/<PR#>.mosaic_pipeline.rst
• changes/<PR#>.patch_match.rst

steps

• changes/<PR#>.dq_init.rst
• changes/<PR#>.saturation.rst
• changes/<PR#>.refpix.rst
• changes/<PR#>.linearity.rst
• changes/<PR#>.dark_current.rst
• changes/<PR#>.jump_detection.rst
• changes/<PR#>.ramp_fitting.rst
• changes/<PR#>.assign_wcs.rst
• changes/<PR#>.flatfield.rst
• changes/<PR#>.photom.rst
• changes/<PR#>.flux.rst
• changes/<PR#>.source_detection.rst
• changes/<PR#>.tweakreg.rst
• changes/<PR#>.skymatch.rst
• changes/<PR#>.outlier_detection.rst
• changes/<PR#>.resample.rst
• changes/<PR#>.source_catalog.rst

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 41.10%. Comparing base (f23b480) to head (94a3cef).

Files with missing lines	Patch %	Lines
romancal/skymatch/skymatch_step.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1465       +/-   ##
===========================================
- Coverage   78.07%   41.10%   -36.98%     
===========================================
  Files         119      114        -5     
  Lines        7695     6819      -876     
===========================================
- Hits         6008     2803     -3205     
- Misses       1687     4016     +2329     

Flag	Coverage Δ		*Carryforward flag
nightly	62.03% <ø> (ø)		Carriedforward from c8a21d4

*This pull request uses carry forward flags. Click here to find out more.

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[mcara]

Would it be possible to run regression tests on this PR and spacetelescope/stcal#310 branch?