[mdatagen] Generate documentation for components with resource attributes only #23430

Job	Run time
govulncheck	28s
setup-environment	12s
checks	50s
unittest-matrix (ubuntu-latest, ~1.23)	41s
unittest-matrix (ubuntu-latest, ~1.22)	42s
lint	1m 49s
cross-build-collector (darwin, amd64)	38s
cross-build-collector (darwin, arm64)	37s
test-coverage	50s
cross-build-collector (linux, 386)	44s
cross-build-collector (linux, amd64)	1m 8s
cross-build-collector (linux, arm64)	44s
cross-build-collector (linux, ppc64le)	58s
cross-build-collector (linux, arm, 7)	37s
cross-build-collector (linux, s390x)	42s
cross-build-collector (windows, 386)	40s
cross-build-collector (windows, amd64)	1m 9s
unittest	1s
	13m 30s

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