API-1802: watchevents: add cert rotation events

[vrutkovs]

library-go emits events when cert rotation happens, these should be displayed as interesting events.

Example, filter by Interesting Events

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: vrutkovs
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[openshift-ci-robot]

@vrutkovs: This pull request references API-1802 which is a valid jira issue.

In response to this:

library-go emits events when cert rotation happens, these should be displayed as interesting events.

Example, filter by Interesting Events

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[vrutkovs]

/retest

[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-single-node	966e9c8	link	false	/test e2e-aws-ovn-single-node
ci/prow/e2e-aws-ovn-single-node-upgrade	966e9c8	link	false	/test e2e-aws-ovn-single-node-upgrade

Full PR test history. Your PR dashboard.

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[openshift-trt-bot]

Job Failure Risk Analysis for sha: 966e9c8

Job Name	Failure Risk
pull-ci-openshift-origin-master-e2e-aws-ovn-single-node	Low [sig-arch] events should not repeat pathologically for ns/openshift-etcd This test has passed 77.78% of 45 runs on jobs ['periodic-ci-openshift-release-master-nightly-4.16-e2e-aws-ovn-single-node'] in the last 14 days.