[SCSB-223] align dependencies with explicit imports

[zacharyburnett]

Resolves SCSB-223

used valimdep to find unimported dependencies and undepended imports:

• removed asdf-astropy
• added pyyaml
• sorted imports alphabetically

Tasks

• Update or add relevant roman_datamodels tests.
• Update relevant docstrings and / or docs/ page.
• Does this PR change any API used downstream? (If not, label with no-changelog-entry-needed.)
  • Write news fragment(s) in changes/: echo "changed something" > changes/<PR#>.<changetype>.rst (see below for change types).
  • Start a romancal regression test (https://github.com/spacetelescope/RegressionTests/actions/workflows/romancal.yml) with this branch installed ("git+https://github.com/<fork>/rad@<branch>").

News fragment change types:

• changes/<PR#>.feature.rst: new feature
• changes/<PR#>.bugfix.rst: fixes an issue
• changes/<PR#>.doc.rst: documentation change
• changes/<PR#>.removal.rst: deprecation or removal of public API
• changes/<PR#>.misc.rst: infrastructure or miscellaneous change

[zacharyburnett]

@braingram just making sure, asdf-astropy isn't required to be imported somewhere without being explicitly imported, right?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.55%. Comparing base (087a60d) to head (2f32cd2).
⚠️ Report is 237 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #626      +/-   ##
==========================================
- Coverage   97.56%   94.55%   -3.01%     
==========================================
  Files          30       26       -4     
  Lines        2788     2681     -107     
==========================================
- Hits         2720     2535     -185     
- Misses         68      146      +78     

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[braingram]

I think we can remove this one since rdm has no schemas.

[braingram]

@braingram just making sure, asdf-astropy isn't required to be imported somewhere without being explicitly imported, right?

Since asdf-astropy (and other asdf extensions) use entry points that are handled by asdf it's not required that this package import asdf-astropy for this package to use (and require) the features provided by asdf-astropy.

[zacharyburnett]

for py311-oldestdeps the tests are failing because the current lowest allowed version of pytest_doctestplus uses pkg_resources which is no longer available:

  File "/home/runner/work/roman_datamodels/roman_datamodels/.tox/py311-oldestdeps-cov/lib/python3.11/site-packages/pytest_doctestplus/utils.py", line 3, in <module>
    import pkg_resources

https://github.com/spacetelescope/roman_datamodels/actions/runs/21997034193/job/63559649298?pr=626#step:10:142

EDIT: pytest_doctestplus>=1.3.0

[braingram]

for py311-oldestdeps the tests are failing because the current lowest allowed version of pytest_doctestplus uses pkg_resources which is no longer available:

  File "/home/runner/work/roman_datamodels/roman_datamodels/.tox/py311-oldestdeps-cov/lib/python3.11/site-packages/pytest_doctestplus/utils.py", line 3, in <module>
    import pkg_resources

https://github.com/spacetelescope/roman_datamodels/actions/runs/21997034193/job/63559649298?pr=626#step:10:142

EDIT: pytest_doctestplus>=1.3.0

Why is oldestdeps trying to install an old test dependency? Under what condition do we want to be using an old pytest plugin?

[zacharyburnett]

running regression test here: https://github.com/spacetelescope/RegressionTests/actions/runs/22000264418