feat(webapp): add per-worker Node.js heap metrics (#3437) #3022

Job	Run time
units / packages / 🧪 Unit Tests: Packages (1, 1)	9m 2s
units / internal / 🧪 Unit Tests: Internal (3, 8)	8m 17s
units / internal / 🧪 Unit Tests: Internal (2, 8)	12m 15s
units / internal / 🧪 Unit Tests: Internal (4, 8)	6m 10s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 42s
units / internal / 🧪 Unit Tests: Internal (6, 8)	6m 29s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 37s
units / internal / 🧪 Unit Tests: Internal (5, 8)	6m 9s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 58s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 47s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 37s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	4m 25s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	7m 58s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	6m 33s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	5m 55s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 34s
typecheck / typecheck	6m 33s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 41s
publish-webapp / publish	5m 46s
publish-worker-v4 / build (supervisor)	2m 43s
publish-worker / build (kubernetes-provider)	1m 2s
publish-worker / build (docker-provider)	2m 7s
publish-worker / build (coordinator)	1m 48s
units / webapp / 📊 Merge Reports	55s
units / packages / 📊 Merge Reports	21s
units / internal / 📊 Merge Reports	23s
	2h 4m 47s

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