Use Log instead of Logf for job integration tests

[kannon92]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

https://github.com/kubernetes/kubernetes/pull/135381/files#r2718323619

Which issue(s) this PR is related to:

Special notes for your reviewer:

t.Log works when we don't have any formatting needed.

I found the cases where we do this in our integration tests and propsed a fix for all these.

This addresses @tenzen-y comment on https://github.com/kubernetes/kubernetes/pull/135381/files#r2718323619.

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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[kannon92]

/assign @mimowo @tenzen-y

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: kannon92
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[kannon92]

/sig apps