chore: Describe RBAC rules, remove unnecessary rules #278

Job	Run time
Detect relevant changed files	6s
Build/Publish amd64 Image	7m 0s
Run cargo-udeps	1m 57s
Build/Publish arm64 Image	15m 44s
Publish/Sign 0.0.0-pr767 Index	29s
Package/Publish 0.0.0-pr767 Helm Chart	24s
Run OpenShift Preflight Check for 0.0.0-pr767-amd64	20s
Run OpenShift Preflight Check for 0.0.0-pr767-arm64	14s
Failure Notification	0s
Finished Build and Publish	2s
	26m 16s

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