bugfix MutateAnnotations

[Smeb]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Previously, if an object has no annotations, new annotations would be created and set as the label, and then overrides would be set on the labels.

Does this PR introduce a user-facing change?

fixed an issue with MutateAnnotations when the object had no existing annotations

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[k8s-ci-robot]

Hi @Smeb. Thanks for your PR.

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[vladimirvivien]

/ok-to-test

[harshanarayana]

/lgtm

cc @vladimirvivien @ShwethaKumbla

[harshanarayana]

bugfixes an issue with MutateAnnotations when the object had no existing annotations -> Mind changing this a slight bit to read fixed an issue with MutateAnnotations when the object had no existing annotations ? @Smeb

[vladimirvivien]

Thanks @Smeb

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Smeb, vladimirvivien

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