Bump google.golang.org/grpc from 1.53.0 to 1.62.1 in /exporter/otlpexporter #770

Job	Run time
setup-environment	33s
checks	29s
unittest (1.20)	1m 18s
unittest (1.19)	1m 15s
lint	1m 40s
cross-build-collector (darwin, amd64)	15s
test-coverage	1m 24s
cross-build-collector (darwin, arm64)	17s
cross-build-collector (linux, 386)	17s
cross-build-collector (linux, amd64)	26s
cross-build-collector (linux, arm64)	16s
cross-build-collector (linux, ppc64le)	22s
cross-build-collector (linux, arm)	19s
cross-build-collector (windows, 386)	21s
cross-build-collector (windows, amd64)	22s
	9m 34s

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