chore: Describe RBAC rules, remove unnecessary rules #120

Job	Run time
Detect relevant changed files	7s
Build/Publish amd64 Image	6m 35s
Run cargo-udeps	2m 1s
Build/Publish arm64 Image	5m 12s
Package/Publish 0.0.0-pr745 Helm Chart	30s
Publish/Sign 0.0.0-pr745 Index	33s
Run OpenShift Preflight Check for 0.0.0-pr745-arm64	15s
Run OpenShift Preflight Check for 0.0.0-pr745-amd64	15s
Failure Notification	0s
Finished Build and Publish	3s
	15m 31s

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