Add Placement/PlacementRule as the owner of DRPC #65

Job	Run time
Unit tests	8m 14s
drenv tests (3.9)	1m 53s
drenv tests (3.10)	1m 37s
drenv tests (3.11)	2m 2s
Golangci Lint	33s
Build image	4m 58s
ramenctl tests (3.9)	36s
ramenctl tests (3.10)	26s
ramenctl tests (3.11)	26s
Linters	1m 45s
Check artifacts and operator deployment (1.20.7)	2m 26s
Publish built image	0s
	24m 56s

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