remove CRDS PUB server from test

[nden]

Resolves JP-nnnn

Closes #

Is it time to replace the CRDS PUB server from a datamodels test with the OPS server? Noticed because of an issue with the JWST-devdeps job.

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

Base: 79.64% // Head: 79.64% // No change to project coverage 👍

Coverage data is based on head (d3f3948) compared to base (c66627f).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7368   +/-   ##
=======================================
  Coverage   79.64%   79.64%           
=======================================
  Files         412      412           
  Lines       37572    37572           
=======================================
  Hits        29924    29924           
  Misses       7648     7648           

Flag	Coverage Δ		*Carryforward flag
nightly	79.62% <ø> (ø)		Carriedforward from c66627f
unit	52.23% <ø> (ø)

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

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.