[BugFix] Add update permission for starrocksclusters/finalizers resource

[yandongxiao]

Related Issue(s)

Fixes: #483

Checklist

For operator, please complete the following checklist:

• [ ] run make generate to generate the code.
• [ ] run golangci-lint run to check the code style.
• [ ] run make test to run UT.
• [ ] run make manifests to update the yaml files of CRD.

For helm chart, please complete the following checklist:

• [ ] make sure you have updated the values.yaml file of starrocks chart.
• [ ] In scripts directory, run bash create-parent-chart-values.sh to update the values.yaml file of the parent chart( kube-starrocks chart).