Enable revive check if-return

[oscr]

Detailed Description

In pr #7442 most of the recommended revive rules where enabled, except two which had a lot of findings.

This ticket is about enabling revive check: if-return again here and fixing the findings.

/kind feature

[fabriziopandini]

/triage accepted
/help

let's make an assessment about how much invasive this is vs the value added by the check before fixing

[k8s-ci-robot]

@fabriziopandini:
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In response to this:

/triage accepted
/help

let's make an assessment about how much invasive this is vs the value added by the check before fixing

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[oscr]

I took a look at it now and after adding an ignore for the conversions it was pretty straight forward.