Add ability to marshal yaml-tagged structs #20295

Job	Run time
govulncheck	31s
setup-environment	21s
test-coverage	7m 51s
lint	3m 37s
cross-build-collector (darwin, amd64)	42s
unittest-matrix (ubuntu-latest, ~1.22)	4m 37s
checks	1m 59s
cross-build-collector (darwin, arm64)	42s
unittest-matrix (ubuntu-latest, ~1.21.11)	4m 38s
cross-build-collector (linux, 386)	43s
cross-build-collector (linux, amd64)	43s
cross-build-collector (linux, arm64)	41s
cross-build-collector (linux, ppc64le)	51s
cross-build-collector (linux, arm, 7)	41s
cross-build-collector (linux, s390x)	47s
cross-build-collector (windows, 386)	44s
cross-build-collector (windows, amd64)	44s
unittest	1s
	30m 53s

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