[chore] Move metrics initialization in service/telemetry #22916

Job	Run time
govulncheck	37s
setup-environment	10s
unittest-matrix (ubuntu-latest, ~1.23)	2m 10s
checks	1m 50s
unittest-matrix (ubuntu-latest, ~1.22)	2m 15s
lint	3m 29s
cross-build-collector (darwin, amd64)	42s
test-coverage	6m 12s
cross-build-collector (darwin, arm64)	44s
cross-build-collector (linux, 386)	43s
cross-build-collector (linux, amd64)	44s
cross-build-collector (linux, arm64)	41s
cross-build-collector (linux, ppc64le)	37s
cross-build-collector (linux, arm, 7)	42s
cross-build-collector (linux, s390x)	37s
cross-build-collector (windows, 386)	42s
cross-build-collector (windows, amd64)	50s
unittest	1s
	23m 46s

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