JP-3445: Exclude NINTS=1 from SOSS TSO3 associations

[hbushouse]

Resolves JP-3445

Closes #8027

This PR updates the Level-3 ASN rules for forming "tso3" type associations, so that NIRISS SOSS "dummy" exposures that have NINTS=1 are excluded from the association. They aren't desired to be part of the level-3 processing and cause an abort in the tso3 pipeline if they appear in the ASN.

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

[hbushouse]

Test results using the pool from program jw03596 show that the tso3 asn for observation 001 no longer contain the exposure "jw03596001001_03101_00001-seg001_nis_calints.fits", which is the "dummy" exposure that uses NINTS=1 and was causing the tso3 pipeline to abort.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.31%. Comparing base (4cc0ac1) to head (136137f).
Report is 28 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8359      +/-   ##
==========================================
+ Coverage   75.15%   75.31%   +0.15%     
==========================================
  Files         470      474       +4     
  Lines       38604    38965     +361     
==========================================
+ Hits        29014    29346     +332     
- Misses       9590     9619      +29     

Flag	Coverage Δ		*Carryforward flag
nightly	77.33% <ø> (-0.07%)	⬇️	Carriedforward from eb3473c

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[hbushouse]

Regression test run started at https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1315

Note that a new pool and related output asn files have been added to the asn regression tests on Artifactory. The new pool comes from the 3596 program that was causing the original trouble. It contains the additional "NINTS" column that SDP will now be adding to all pool files.

[hbushouse]

All 53 regression test failures are unrelated and due to a recent update to a datamodels schema. So this PR has clean results.