support confmap providers in discovery config (#3874) #13

Job	Run time
setup-environment	1m 36s
generate-metrics	3m 47s
coverage	5m 31s
cross-compile (binaries-darwin_amd64)	4m 10s
cross-compile (binaries-darwin_arm64)	7m 9s
gofmt	6m 10s
cross-compile (binaries-linux_amd64)	8m 38s
lint	24m 17s
cross-compile (binaries-linux_arm64)	6m 39s
cross-compile (binaries-windows_amd64)	6m 51s
cross-compile (binaries-linux_ppc64le)	4m 4s
test	10m 33s
tidy	2m 40s
	1h 32m 5s

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