[v0.105] Integrate Collector's metrics with Agent's #32

Job	Run time
govulncheck	1m 0s
setup-environment	30s
unittest-matrix (ubuntu-latest, ~1.22)	7m 28s
checks	1m 47s
test-coverage	9m 52s
unittest-matrix (ubuntu-latest, ~1.21.12)	7m 32s
cross-build-collector (darwin, amd64)	36s
cross-build-collector (darwin, arm64)	37s
lint	3m 25s
cross-build-collector (linux, 386)	41s
cross-build-collector (linux, amd64)	46s
cross-build-collector (linux, arm64)	37s
cross-build-collector (linux, ppc64le)	43s
cross-build-collector (linux, arm, 7)	35s
cross-build-collector (linux, s390x)	36s
cross-build-collector (windows, 386)	43s
cross-build-collector (windows, amd64)	37s
unittest	1s
	38m 6s

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