update grpc instrumentation #16843

Job	Run time
govulncheck	31s
setup-environment	7s
test-coverage	4m 13s
checks	2m 4s
lint	3m 11s
cross-build-collector (darwin, amd64)	42s
unittest-matrix (~1.21.5)	4m 47s
cross-build-collector (darwin, arm64)	39s
unittest-matrix (~1.20.12)	4m 8s
cross-build-collector (linux, 386)	35s
cross-build-collector (linux, amd64)	40s
cross-build-collector (linux, arm64)	39s
cross-build-collector (linux, ppc64le)	42s
cross-build-collector (linux, arm, 7)	42s
cross-build-collector (linux, s390x)	44s
cross-build-collector (windows, 386)	48s
cross-build-collector (windows, amd64)	45s
unittest	1s
	25m 58s

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