chore: add grpc handler and proto file #13277

Job	Run time
trigger mode	13s
check-image	0s
check helm	0s
check-datascript-image	0s
check-dataprotection-image	0s
check-tools-image	0s
make-test	0s
test (mod-vendor)	1m 0s
test (lint)	2m 41s
test (staticcheck)	2m 58s
test (./apis)	3m 0s
test (pkg/viperx)	1m 47s
test (pkg/metrics)	2m 24s
test (pkg/constant)	1m 55s
test (pkg/controller)	2m 58s
test (pkg/unstructured)	2m 7s
test (pkg/configuration)	2m 58s
test (pkg/apiutil)	2m 9s
test (pkg/common)	2m 21s
test (pkg/kb_agent)	2m 43s
test (pkg/gotemplate)	2m 16s
test (pkg/testutil)	2m 28s
test (pkg/generics)	2m 24s
test (pkg/lorry)	2m 57s
test (pkg/dataprotection)	2m 56s
test (pkg/controllerutil)	2m 25s
test (controllers/storage)	2m 48s
test (controllers/workloads)	2m 38s
test (controllers/apps)	2m 59s
test (controllers/k8score)	2m 45s
test (controllers/dataprotection)	3m 0s
test (controllers/extensions)	2m 45s
test (controllers/experimental)	2m 27s
remove-runner	0s
make test	1s
	1h 6m 3s

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