drpc: don't use deepCopyInto as the drpc field isn't initialized #3150

Job	Run time
Build image	2m 5s
Golangci Lint (.)	21s
Linters	56s
Golangci Lint (api)	10s
drenv tests (3.9)	1m 34s
Golangci Lint (e2e)	16s
drenv tests (3.10)	1m 34s
drenv tests (3.11)	1m 35s
ramenctl tests (3.9)	16s
Unit tests	2m 55s
ramenctl tests (3.10)	14s
ramenctl tests (3.11)	14s
Check artifacts and operator deployment (1.29.1)	1m 21s
Publish built image	49s
	14m 20s

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