[processorhelper] deprecated accepted/refused/dropped metrics #22973

Job	Run time
setup-environment	9s
govulncheck	44s
unittest-matrix (ubuntu-latest, ~1.23)	2m 7s
unittest-matrix (ubuntu-latest, ~1.22)	2m 8s
checks	2m 2s
lint	2m 7s
cross-build-collector (darwin, amd64)	38s
test-coverage	2m 5s
cross-build-collector (darwin, arm64)	37s
cross-build-collector (linux, 386)	43s
cross-build-collector (linux, amd64)	38s
cross-build-collector (linux, arm64)	38s
cross-build-collector (linux, ppc64le)	40s
cross-build-collector (linux, arm, 7)	38s
cross-build-collector (linux, s390x)	54s
cross-build-collector (windows, 386)	47s
cross-build-collector (windows, amd64)	45s
unittest	1s
	18m 21s

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