ETCD-593: Enable experimental-stop-grpc-service-on-defrag

[Elbehery]

This PR enable --experimental-stop-grpc-service-on-defrag on OCP/Etcd.

cc @openshift/openshift-team-etcd

[openshift-ci-robot]

@Elbehery: This pull request references ETCD-593 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:

This PR enable --experimental-stop-grpc-service-on-defrag on OCP/Etcd.

cc @openshift/openshift-team-etcd

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[dusk125]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dusk125, Elbehery

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[hasbro17]

/hold

We need to test and validate whether this flag is actually stopping grpc on the degraded member or if we need to enable something on the etcd client side as well.
kubernetes/kubernetes#124787

[openshift-ci]

@Elbehery: 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-gcp-qe-no-capabilities	b42f48e	link	false	/test e2e-gcp-qe-no-capabilities
ci/prow/e2e-operator-fips	b42f48e	link	false	/test e2e-operator-fips
ci/prow/e2e-aws-etcd-recovery	b42f48e	link	false	/test e2e-aws-etcd-recovery
ci/prow/e2e-aws-ovn-etcd-scaling	b42f48e	link	unknown	/test e2e-aws-ovn-etcd-scaling

Full PR test history. Your PR dashboard.

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