Add permission for secret deletecollect

[vincent-pli]

What this PR does / why we need it: When I create a ns in tenant cluster then delete I found error raised in syncer 's log, as this:

E0702 05:42:20.820948       1 dws.go:95] failed reconcile secret test/default-token-zp82r DELETE of cluster default-a32f71-vc-sample-1 secrets is forbidden: User "system:serviceaccount:vc-manager:vc-syncer" cannot deletecollection resource "secrets" in API group "" in the namespace "default-a32f71-vc-sample-1-test"

seems we do not assign enough permission to the sa, leak for deletecollection

[k8s-ci-robot]

Hi @vincent-pli. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[christopherhein]

/ok-to-test

[Fei-Guo]

@vincent-pli What is your super cluster's K8s version?

[vincent-pli]

@Fei-Guo , with Kind

root@rentz1:~# kubectl version
Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.0", GitCommit:"e19964183377d0ec2052d1f1fa930c4d7575bd50", GitTreeState:"clean", BuildDate:"2020-08-26T14:30:33Z", GoVersion:"go1.15", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"20", GitVersion:"v1.20.2", GitCommit:"faecb196815e248d3ecfb03c680a4507229c2a56", GitTreeState:"clean", BuildDate:"2021-01-21T01:11:42Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"linux/amd64"}

[christopherhein]

@Fei-Guo are you concerned about backward compatibility w/ this rule?

[Fei-Guo]

@Fei-Guo are you concerned about backward compatibility w/ this rule?

I was wondering why I did not hit this locally. It seems to be a missing configuration and we just did not hit that code path.

[Fei-Guo]

Thanks for finding it out. /lgtm /approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Fei-Guo, vincent-pli

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