Add override CRD fields

[michael-valdron]

Please specify the area for this PR

operator api

What does does this PR do / why we need it:

Adds override fields from the helm chart to the DevfileRegistry CRD:

• hostnameOverride
• nameOverride
• fullnameOverride

Which issue(s) this PR fixes:

Fixes #?

fixes devfile/api#1439

PR acceptance criteria:

• Test Coverage
  • Are your changes sufficiently tested, and are any applicable test cases added or updated to cover your changes?
• Gosec scans
  • Fix all MEDIUM and higher findings and/or annotate a finding per gosec instructions: https://github.com/securego/gosec#annotating-code to address why a finding is not a security issue

Documentation

• Does the registry operator documentation need to be updated with your changes?

How to test changes / Special notes to the reviewer:

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[michael-valdron]

/test all

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.34%. Comparing base (bc2d8f4) to head (13f81db).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #82      +/-   ##
==========================================
+ Coverage   27.03%   28.34%   +1.30%     
==========================================
  Files          25       25              
  Lines        1435     1450      +15     
==========================================
+ Hits          388      411      +23     
+ Misses       1024     1018       -6     
+ Partials       23       21       -2     

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[michael-valdron]

Does the registry operator documentation need to be updated with your changes?

N/A to the issue.

[michael-valdron]

/retest

[thepetk]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: michael-valdron, thepetk

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• OWNERS [michael-valdron,thepetk]

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