✨ Add yaml CI validation for yml\yaml files

[omerap12]

What this PR does / why we need it:
This gives us basic protection against invalid YAML from landing in the project. we can configure which types of checks we want to include and which checks should be set as warning.

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 #218

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[k8s-ci-robot]

Hi @omerap12. Thanks for your PR.

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[mboersma]

/ok-to-test

[Jont828]

Minor nit but otherwise LGTM

[Jont828]

Can you squash commits as well? Should be good to merge we do that and tests are done.

[omerap12]

Can you squash commits as well? Should be good to merge we do that and tests are done.

sure

[mboersma]

/lgtm

[Jont828]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Jont828, omerap12

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