🐛 add admissionregistration group to work execution clusterrole

[zhiweiyin318]

Summary

add permission to make work support to apply mutatingwebhookconfigurations and validatingwebhookconfigurations resouces.

Related issue(s)

#384
Fixes #

[zhiweiyin318]

/assign @qiujian16

[qiujian16]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiujian16, zhiweiyin318

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[mikeshng]

/cherrypick release-0.13

[openshift-cherrypick-robot]

@mikeshng: new pull request created: #420

In response to this:

/cherry-pick release-0.13

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openshift-cherrypick-robot]

@mikeshng: new pull request could not be created: failed to create pull request against open-cluster-management-io/ocm#release-0.13 from head openshift-cherrypick-robot:cherry-pick-401-to-release-0.13: status code 422 not one of [201], body: {"message":"Validation Failed","errors":[{"resource":"PullRequest","code":"custom","message":"A pull request already exists for openshift-cherrypick-robot:cherry-pick-401-to-release-0.13."}],"documentation_url":"https://docs.github.com/rest/pulls/pulls#create-a-pull-request"}

In response to this:

/cherrypick release-0.13

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.