Implement workflow-manager-helper data update observer #62

Job	Run time
build-and-push-images (function-mmsys-test-encode)	19m 10s
build-and-push-images (function-mmsys-test-scene-detection)	18m 34s
build-and-push-images (function-noop)	13m 53s
build-and-push-images (function-sleep)	13m 49s
build-and-push-images (gateway-nbmp)	12m 50s
build-and-push-images (workflow-manager)	12m 52s
build-and-push-images (workflow-manager-helper)	12m 59s
build-and-push-images (workflow-opentelemetry-adapter)	9m 14s
build-and-push-images (workflow-vacuum)	9m 18s
	2h 2m 39s

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