Fix for NIRSpec IRS2 readout mode

[bmorris3]

Description

#3148 implemented parsers for JWST ramp cubes. JWST/NIRSpec has two readout modes, and it appears that the IRS2 readout modes produce ramp cubes with the order of the x and y axes swapped. This PR identifies that special case and rearranges the axes correctly.

Test this PR with:

from jdaviz import Rampviz

uri = "mast:JWST/product/jw02123001002_0310d_00001_nrs1_uncal.fits"

rampviz = Rampviz()
rampviz.load_data(uri, cache=True)
rampviz.show()

Change log entry

• Is a change log needed? If yes, is it added to CHANGES.rst? If you want to avoid merge conflicts,
  list the proposed change log here for review and add to CHANGES.rst before merge. If no, maintainer
  should add a no-changelog-entry-needed label.

Checklist for package maintainer(s)

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• Are two approvals required? Branch protection rule does not check for the second approval. If a second approval is not necessary, please apply the trivial label.
• Do the proposed changes actually accomplish desired goals? Also manually run the affected example notebooks, if necessary.
• Do the proposed changes follow the STScI Style Guides?
• Are tests added/updated as required? If so, do they follow the STScI Style Guides?
• Are docs added/updated as required? If so, do they follow the STScI Style Guides?
• Did the CI pass? If not, are the failures related?
• Is a milestone set? Set this to bugfix milestone if this is a bug fix and needs to be released ASAP; otherwise, set this to the next major release milestone. Bugfix milestone also needs an accompanying backport label.
• After merge, any internal documentations need updating (e.g., JIRA, Innerspace)? 🐱

[codecov]

Codecov Report

Attention: Patch coverage is 69.23077% with 4 lines in your changes missing coverage. Please review.

Project coverage is 88.41%. Comparing base (a9b559b) to head (0e735d5).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
jdaviz/configs/rampviz/plugins/parsers.py	69.23%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3167      +/-   ##
==========================================
- Coverage   88.42%   88.41%   -0.01%     
==========================================
  Files         122      122              
  Lines       18264    18272       +8     
==========================================
+ Hits        16150    16156       +6     
- Misses       2114     2116       +2     

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[rosteen]

LGTM!