MCO-1524: Promote PinnedImageSet feature gate to default feature set

[RishabhSaini]

features: Lift feature gate for PIS

[openshift-ci]

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API design plays an important part in the user experience of OpenShift and as such API PRs are subject to a high level of scrutiny to ensure they follow our best practices. If you haven't already done so, please review the OpenShift API Conventions and ensure that your proposed changes are compliant. Following these conventions will help expedite the api review process for your PR.

[openshift-ci-robot]

@RishabhSaini: This pull request references MCO-1524 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 "4.19.0" version, but no target version was set.

In response to this:

features: Lift feature gate for PIS

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

/test verify-feature-promotion

[openshift-ci]

@RishabhSaini: 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	a25a302	link	false	/test e2e-gcp
ci/prow/e2e-aws-serial	a25a302	link	true	/test e2e-aws-serial
ci/prow/verify-client-go	a25a302	link	true	/test verify-client-go
ci/prow/verify-crd-schema	a25a302	link	true	/test verify-crd-schema
ci/prow/e2e-aws-ovn	a25a302	link	true	/test e2e-aws-ovn
ci/prow/e2e-upgrade-out-of-change	a25a302	link	true	/test e2e-upgrade-out-of-change
ci/prow/e2e-aws-ovn-hypershift	a25a302	link	true	/test e2e-aws-ovn-hypershift
ci/prow/minor-e2e-upgrade-minor	a25a302	link	true	/test minor-e2e-upgrade-minor
ci/prow/e2e-aws-ovn-techpreview	a25a302	link	true	/test e2e-aws-ovn-techpreview
ci/prow/e2e-aws-serial-techpreview	a25a302	link	true	/test e2e-aws-serial-techpreview
ci/prow/verify-feature-promotion	a25a302	link	true	/test verify-feature-promotion

Full PR test history. Your PR dashboard.

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