Update sregion at the end of TweakRegStep

[izkgao]

This PR fixes an issue where sregion is not updated after corrections are applied to the WCS.

Checklist for maintainers

• added entry in CHANGES.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant milestone
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR
• Make sure the JIRA ticket is resolved properly

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c957490) 75.24% compared to head (961aa88) 75.25%.
Report is 1 commits behind head on master.

❗ Current head 961aa88 differs from pull request most recent head 94f37e1. Consider uploading reports for the commit 94f37e1 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8158   +/-   ##
=======================================
  Coverage   75.24%   75.25%           
=======================================
  Files         470      470           
  Lines       38430    38427    -3     
=======================================
- Hits        28918    28917    -1     
+ Misses       9512     9510    -2     

Flag	Coverage Δ		*Carryforward flag
nightly	77.37% <ø> (+<0.01%)	⬆️	Carriedforward from b762c66

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[nden]

Regression tests run here:
https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1128/

[nden]

I believe s_region is not used in the pipeline (though it may be in the future). It's added to the files so the footprint can be visualized in the archive. However, the output of tweakreg is not an archive product. Nevertheless, it may be good to update the keyword.

[izkgao]

@nden Thank you for the information. The reason I want to update s_region is that I use s_region to find images that overlap with the image set to be used in the outlier detection step. In some extreme cases, not updating s_region can cause some of the overlapping images to be missed.

[mcara]

LGTM.

[mcara]

Thanks!

[jdavies-st]

the output of tweakreg is not an archive product.

The output eventually does get written out and archived as the _crf.fits files via outlier_detection.