feat: Deduplicate exceptions workflow

[doronkg]

What this PR does / why we need it?

This PR removes exception duplications found in JSONs under pkg/kor/exceptions.
In addition, it enhances the CI workflow to discover exceptions and dedup them.

Examples:

$ make validate-exception-duplications
The following JSON files contain duplications:
        pkg/kor/exceptions/clusterroles/clusterroles.json
        pkg/kor/exceptions/storageclasses/storageclasses.json
        pkg/kor/exceptions/configmaps/configmaps.json
        pkg/kor/exceptions/crds/crds.json
Run the following command to deduplicate all files recursively: make dedup-exception-files

PR Checklist

• This PR adds K8s exceptions (false positives)
• This PR adds new code
• This PR includes tests for new/existing code
• This PR adds docs

GitHub Issue

Closes #309

Notes for your reviewers

Renamed exceptions-json-sort.yml to validate-exception-jsons to be more generic for future related actions.

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.39%. Comparing base (01ce4a6) to head (4997aa0).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #332   +/-   ##
=======================================
  Coverage   42.39%   42.39%           
=======================================
  Files          61       61           
  Lines        3236     3236           
=======================================
  Hits         1372     1372           
  Misses       1644     1644           
  Partials      220      220           

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[yonahd]

Looks good
One suggestion to test

[yonahd]

Lgtm