Add Prometheus support for APK #2126

Job	Run time
build_adapter / build	5m 13s
build_enforcer / build	9m 1s
build_config / build	6m 18s
build_common_controller / build	5m 38s
build_idpds / build	4m 10s
build_idpui / build	1m 31s
build_ratelimiter / build	1m 17s
build_router / build	6m 42s
runs_go_integration_tests_on_pull_request	27m 14s
runs_cucumber_integration_tests_on_pull_request	26m 32s
	1h 33m 36s

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