docs: added startup_timeout_sec note (#3124) #2995

Job	Run time
typecheck / typecheck	6m 52s
units / packages / 🧪 Unit Tests: Packages (1, 1)	9m 7s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 41s
units / internal / 🧪 Unit Tests: Internal (6, 8)	6m 32s
units / internal / 🧪 Unit Tests: Internal (4, 8)	6m 11s
units / internal / 🧪 Unit Tests: Internal (2, 8)	17m 38s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 18s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 8s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 38s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	4m 24s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	7m 53s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 36s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 51s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 35s
units / internal / 🧪 Unit Tests: Internal (3, 8)	8m 39s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 57s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 34s
units / internal / 🧪 Unit Tests: Internal (5, 8)	6m 26s
publish-webapp / publish	9m 6s
publish-worker / build (kubernetes-provider)	55s
publish-worker / build (coordinator)	2m 3s
publish-worker-v4 / build (supervisor)	3m 6s
publish-worker / build (docker-provider)	1m 8s
units / webapp / 📊 Merge Reports	1m 5s
units / packages / 📊 Merge Reports	23s
units / internal / 📊 Merge Reports	28s
	2h 14m 14s

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