[chore] move opaque confmap test #20213

Job	Run time
govulncheck	33s
setup-environment	15s
lint	3m 41s
checks	1m 51s
test-coverage	5m 9s
cross-build-collector (darwin, amd64)	50s
unittest-matrix (ubuntu-latest, ~1.22)	2m 10s
cross-build-collector (darwin, arm64)	50s
cross-build-collector (linux, 386)	42s
unittest-matrix (ubuntu-latest, ~1.21.11)	2m 13s
cross-build-collector (linux, amd64)	42s
cross-build-collector (linux, arm64)	51s
cross-build-collector (linux, ppc64le)	41s
cross-build-collector (linux, arm, 7)	41s
cross-build-collector (linux, s390x)	43s
cross-build-collector (windows, 386)	41s
cross-build-collector (windows, amd64)	44s
unittest	1s
	23m 18s

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