🌱 Enable lint checks for FKAS

[SD-13]

What this PR does / why we need it:
This is PR enable lint checks for FKAS and fix existing lint check failures

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #2118

[metal3-io-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[metal3-io-bot]

Hi @SD-13. Thanks for your PR.

I'm waiting for a metal3-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[smoshiur1237]

/ok-to-test

[peppi-lotta]

FKAS is used only in the metal3-centos-e2e-feature-test-main-scalability test. That test is broken at the moment. I think scalability test should be run on this PR so I'm putting this on hold until scalability test is fixed.
/hold

[tuminoid]

I approved the workflows, let's see how the linting looks like from workflow perspective.

[tuminoid]

Linters are happy, so let's wait for the scalability test fix to see we did not break it with the linter required changes.