library-go certrotation: avoid using applySecret to catch racy cert updates

[vrutkovs]

Alternative for openshift/library-go#1722

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[vrutkovs]

/test e2e-aws-ovn e2e-gcp-operator

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vrutkovs

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[vrutkovs]

/test e2e-aws-ovn e2e-gcp-operator

[vrutkovs]

/test e2e-aws-ovn e2e-gcp-operator

[vrutkovs]

/test e2e-aws-ovn e2e-gcp-operator

[openshift-ci]

@vrutkovs: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-ovn	a064569	link	true	/test e2e-aws-ovn
ci/prow/e2e-gcp-operator	a064569	link	true	/test e2e-gcp-operator

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[openshift-merge-robot]

PR needs rebase.

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