chore: Describe RBAC rules, remove unnecessary rules #142

Job	Run time
Detect relevant changed files	6s
Build/Publish arm64 Image	5m 49s
Run cargo-udeps	2m 24s
Build/Publish amd64 Image	7m 54s
Publish/Sign 0.0.0-pr820 Index	23s
Package/Publish 0.0.0-pr820 Helm Chart	27s
Run OpenShift Preflight Check for 0.0.0-pr820-arm64	17s
Run OpenShift Preflight Check for 0.0.0-pr820-amd64	19s
Failure Notification	-1s
Finished Build and Publish	4s
	17m 42s

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