drpolicy: validation of the drpolicy doesn't depend on cluster deploy #200

Job	Run time
Unit tests	8m 18s
drenv tests (3.9)	1m 40s
Linters	48s
drenv tests (3.10)	1m 48s
drenv tests (3.11)	1m 49s
ramenctl tests (3.9)	20s
ramenctl tests (3.10)	21s
Golangci Lint	2m 19s
ramenctl tests (3.11)	19s
Build image	6m 8s
Check artifacts and operator deployment (1.20.7)	3m 7s
Publish built image	0s
	26m 57s

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