Limit the ability to change the group configs

[andrewballantyne]

https://issues.redhat.com/browse/RHOAIENG-15160

Description

Prevent group changes in the OdhDashboardConfig so all changes are properly in the Auth resource created by the Platform. See opendatahub-io/opendatahub-operator#1452 for those changes.

There is a UI change to support not writing to this resource anymore, see #3577.

When saving in OdhDashboardConfig, you should see an error like this:

It has a minor set of wording to point them to another resource.

How Has This Been Tested?

Apply the change to a cluster -- it'll mutate the CRD and the CR will no longer be modifiable.

Test Impact

N/A

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

If you have UI changes:

• Included any necessary screenshots or gifs if it was a UI change.
• Included tags to the UX team if it was a UI/UX change.

After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[andrewballantyne]

/hold

We should wait on merging this until we have a good understanding of everything merging into ODH / RHOAI. This will block development flows around modifying the group configs.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.18%. Comparing base (1896f34) to head (8508164).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3585      +/-   ##
==========================================
- Coverage   85.19%   85.18%   -0.01%     
==========================================
  Files        1382     1382              
  Lines       31572    31572              
  Branches     8824     8824              
==========================================
- Hits        26897    26895       -2     
- Misses       4675     4677       +2     

see 1 file with indirect coverage changes

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[Gkrumbach07]

/lgtm

[openshift-ci]

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