fix: [Policy Assistant] translate could grab labels from other pods

[huntergregory]

Fixes a bug in policy-assistant analyze --mode walkthrough resulting in incorrect policy verdicts because Translate() could return Pod B's metadata when translating Pod A.

This was a bug of variable scope for workloadOwner and workloadKind. This PR moves variables closer to their usage at the proper scope.

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[huntergregory]

integration test for walkthrough mode is broken with a false alarm after #264 . Need to look into repo settings for the GH action to avoid this in future: #267

I'd recommend merging this fix and fixing GH action after first release

[danwinship]

/lgtm

[huntergregory]

/ok-to-test

[danwinship]

/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danwinship, huntergregory

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