EVEREST-1142 | Add command for validating RBAC policy #1737

Job	Run time
CLI Integration Tests (1.22.x, false)	7m 54s
API Integration Tests (1.22.x, false)	15m 58s
Check (1.22.x, false)	1m 49s
Test (1.22.x, false)	7m 8s
CLI tests (test-all-operators) / CLI test-all-operators	10m 32s
CLI tests (test-mongo-operator) / CLI test-mongo-operator	8m 13s
CLI tests (test-pg-operator) / CLI test-pg-operator	10m 1s
CLI tests (test-pxc-operator) / CLI test-pxc-operator	8m 12s
Merge Gatekeeper	17s
	1h 10m 4s

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