(JP-3138) Add regtest for calwebb_detector1 for undersampling correction

[dmggh]

Resolves JP-3138

Closes #

This PR adds a regression test for niriss image calwebb_detector1 for testing the undersampling_correction output, and testing the rampfitting output (which contains ramps flagged by the undersampling_correction step ). Documentation for the calwebb_detector1 pipeline will be updated in a separate ticket.
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

Patch coverage has no change and project coverage change: +0.21 🎉

Comparison is base (af63faf) 77.49% compared to head (bf40c4f) 77.70%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7509      +/-   ##
==========================================
+ Coverage   77.49%   77.70%   +0.21%     
==========================================
  Files         452      452              
  Lines       36193    36193              
==========================================
+ Hits        28047    28124      +77     
+ Misses       8146     8069      -77     

Flag	Coverage Δ
nightly	77.69% <ø> (+0.21%)	⬆️

see 6 files with indirect coverage changes

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[hbushouse]

Regtest run is at https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/614/

The majority of failures are expected, due to MacOS tests always showing slight differences (22 tests). The additional 6 are the expected differences from the undersampling_correction.

[hbushouse]

Regtest run is at https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/614/

The majority of failures are expected, due to MacOS tests always showing slight differences (22 tests). The additional 6 are the expected differences from the undersampling_correction.

[hbushouse]

Looks OK to me.