WIP: ETCD-493: Reflect etcd grafana dashboard mixin from upstream

[kramaranya]

ETCD-493

[openshift-ci-robot]

@kramaranya: This pull request references ETCD-493 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.17.0" version, but no target version was set.

In response to this:

ETCD-493

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

@kramaranya: 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-agnostic-ovn-upgrade	5943166	link	true	/test e2e-agnostic-ovn-upgrade
ci/prow/e2e-metal-ovn-ha-cert-rotation-shutdown	5943166	link	false	/test e2e-metal-ovn-ha-cert-rotation-shutdown
ci/prow/e2e-aws-ovn-etcd-scaling	5943166	link	true	/test e2e-aws-ovn-etcd-scaling
ci/prow/e2e-metal-ovn-sno-cert-rotation-shutdown	5943166	link	false	/test e2e-metal-ovn-sno-cert-rotation-shutdown
ci/prow/e2e-aws-etcd-recovery	5943166	link	false	/test e2e-aws-etcd-recovery
ci/prow/e2e-aws-etcd-certrotation	5943166	link	false	/test e2e-aws-etcd-certrotation
ci/prow/e2e-operator-fips	5943166	link	false	/test e2e-operator-fips

Full PR test history. Your PR dashboard.

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