Improve usage flushing (#1931) #2197

Job	Run time
typecheck / typecheck	4m 58s
units / 🧪 Unit Tests	11m 43s
publish-webapp / publish	3m 34s
publish-worker / build (coordinator)	1m 25s
publish-worker / build (docker-provider)	50s
publish-worker / build (kubernetes-provider)	39s
	23m 9s

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