HLA-1266: Newcandidate Drizzlepac RC - 371rc2

[mdlpstsci]

Resolves HLA-1266

Closes #

Update done by Joe to fix the JenkinsfileRT. Move the runtime setting of CFLAGS into the environment variables setting for b3 (env_vars). Also, fixed the mislabeled "b1" to be "b2".

Checklist for maintainers

• added entry in CHANGELOG.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (3.7.1x@d70b386). Learn more about missing BASE report.

Additional details and impacted files

@@            Coverage Diff            @@
##             3.7.1x    #1815   +/-   ##
=========================================
  Coverage          ?   31.23%           
=========================================
  Files             ?      159           
  Lines             ?    35046           
  Branches          ?        0           
=========================================
  Hits              ?    10946           
  Misses            ?    24100           
  Partials          ?        0           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.