Fix the vet linter errors for non-constant format strings in logging calls.

[zoltak-g]

No description provided.

[google-oss-prow]

Skipping CI for Draft Pull Request.
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[burov]

I think it is a good start, we still might want to change it to specific formats if it possible

[google-oss-prow]

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This pull-request has been approved by: burov, zoltak-g

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