fix(webapp): prevent duplicate envs from provision race #8470

Job	Run time
code-quality / code-quality	2m 33s
Detect changes	8s
internal / 🧪 Unit Tests: Internal	6m 34s
e2e-webapp / 🧪 E2E Tests: Webapp	2m 55s
typecheck / typecheck	4m 16s
webapp / 🧪 Unit Tests: Webapp (8, 12)	7m 5s
webapp / 🧪 Unit Tests: Webapp (6, 12)	5m 59s
webapp / 🧪 Unit Tests: Webapp (10, 12)	6m 21s
webapp / 🧪 Unit Tests: Webapp (3, 12)	7m 5s
webapp / 🧪 Unit Tests: Webapp (1, 12)	7m 2s
webapp / 🧪 Unit Tests: Webapp (9, 12)	6m 38s
webapp / 🧪 Unit Tests: Webapp (4, 12)	6m 33s
webapp / 🧪 Unit Tests: Webapp (12, 12)	6m 40s
webapp / 🧪 Unit Tests: Webapp (7, 12)	6m 23s
webapp / 🧪 Unit Tests: Webapp (11, 12)	6m 31s
webapp / 🧪 Unit Tests: Webapp (5, 12)	6m 55s
webapp / 🧪 Unit Tests: Webapp (2, 12)	6m 5s
e2e	0s
sdk-compat	0s
packages	0s
webapp / 📊 Merge Reports	27s
All PR Checks	5s
	1h 36m 15s

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