[config] Deprecate component.UnmarshalConfig #19144

Job	Run time
setup-environment	8s
govulncheck	31s
test-coverage	1m 27s
checks	2m 10s
lint	2m 22s
cross-build-collector (darwin, amd64)	41s
cross-build-collector (darwin, arm64)	42s
unittest-matrix (ubuntu-latest, ~1.22)	49s
cross-build-collector (linux, 386)	45s
unittest-matrix (ubuntu-latest, ~1.21.9)	53s
cross-build-collector (linux, amd64)	41s
unittest-matrix (actuated-arm64-4cpu-4gb, ~1.22)	52s
cross-build-collector (linux, arm64)	45s
unittest-matrix (actuated-arm64-4cpu-4gb, ~1.21.9)	49s
cross-build-collector (linux, ppc64le)	36s
cross-build-collector (linux, arm, 7)	34s
cross-build-collector (linux, s390x)	1m 16s
cross-build-collector (windows, 386)	50s
cross-build-collector (windows, amd64)	37s
unittest	1s
	17m 29s

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