[Devtools week] Update license headers

[michael-valdron]

Please specify the area for this PR

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

Updates license header file to have the Copyright Red Hat format instead of Copyright [year] Red Hat, Inc..

Which issue(s) this PR fixes:

Fixes #?

fixes devfile/api#1243

PR acceptance criteria:

• Change Log
  • Are all your changes documented under the upcoming release entry?
• 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:

[michael-valdron]

• Change Log
  Are all your changes documented under the upcoming release entry?

This is being removed in #49, no need to check this off.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.61% 🎉

Comparison is base (d8f2e3f) 22.11% compared to head (627e50e) 22.72%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #50      +/-   ##
==========================================
+ Coverage   22.11%   22.72%   +0.61%     
==========================================
  Files          23       23              
  Lines        1307     1307              
==========================================
+ Hits          289      297       +8     
+ Misses       1002      995       -7     
+ Partials       16       15       -1     

see 1 file with indirect coverage changes

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[thepetk]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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

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