Add Retry for Applying PriorityClass

[hangscer8]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

/kind bug

What this PR does / why we need it:

• Retry to make applying PriorityClass more stable. I found the follwing log:

4:23PM: TASK [kubernetes-apps/cluster_roles : PriorityClass | Create k8s-cluster-critical] ***
4:23PM: fatal: [poc-master3]: FAILED! => {"changed": false, "msg": "error running kubectl (/usr/local/bin/kubectl apply --force --filename=/etc/kubernetes/k8s-cluster-critical-pc.yml) command (rc=1), out='', err='Error from server (Timeout): error when retrieving current configuration of:\nResource: \"scheduling.k8s.io/v1, Resource=priorityclasses\", GroupVersionKind: \"scheduling.k8s.io/v1, Kind=PriorityClass\"\nName: \"k8s-cluster-critical\", Namespace: \"\"\nfrom server for: \"/etc/kubernetes/k8s-cluster-critical-pc.yml\": the server was unable to return a response in the time allotted, but may still be processing the request (get priorityclasses.scheduling.k8s.io k8s-cluster-critical)\n'"}

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Add Retry for Applying PriorityClass

[floryut]

@hangscer8 Thank you for the PR 👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, hangscer8

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[yankay]

Thanks
/lgtm