perf(ci): speed up unit tests with LPT sharding + container scoping #6905

Job	Run time
Detect changes	3s
typecheck / typecheck	6m 24s
e2e-webapp / 🧪 E2E Tests: Webapp	3m 18s
packages / 🧪 Unit Tests: Packages (2, 3)	2m 46s
packages / 🧪 Unit Tests: Packages (1, 3)	3m 22s
packages / 🧪 Unit Tests: Packages (3, 3)	4m 27s
webapp / 🧪 Unit Tests: Webapp (3, 10)	3m 29s
e2e	0s
webapp / 🧪 Unit Tests: Webapp (5, 10)	3m 47s
webapp / 🧪 Unit Tests: Webapp (10, 10)	3m 31s
webapp / 🧪 Unit Tests: Webapp (6, 10)	3m 35s
webapp / 🧪 Unit Tests: Webapp (2, 10)	3m 12s
webapp / 🧪 Unit Tests: Webapp (4, 10)	4m 15s
webapp / 🧪 Unit Tests: Webapp (1, 10)	3m 44s
internal / 🧪 Unit Tests: Internal (2, 12)	3m 28s
internal / 🧪 Unit Tests: Internal (4, 12)	3m 42s
internal / 🧪 Unit Tests: Internal (1, 12)	3m 35s
internal / 🧪 Unit Tests: Internal (5, 12)	3m 46s
internal / 🧪 Unit Tests: Internal (3, 12)	3m 30s
webapp / 🧪 Unit Tests: Webapp (8, 10)	3m 35s
internal / 🧪 Unit Tests: Internal (9, 12)	3m 29s
webapp / 🧪 Unit Tests: Webapp (7, 10)	3m 40s
internal / 🧪 Unit Tests: Internal (7, 12)	3m 26s
internal / 🧪 Unit Tests: Internal (12, 12)	3m 5s
internal / 🧪 Unit Tests: Internal (8, 12)	3m 53s
internal / 🧪 Unit Tests: Internal (11, 12)	3m 30s
webapp / 🧪 Unit Tests: Webapp (9, 10)	3m 21s
internal / 🧪 Unit Tests: Internal (10, 12)	4m 0s
internal / 🧪 Unit Tests: Internal (6, 12)	5m 54s
sdk-compat	0s
webapp / 📊 Merge Reports	21s
packages / 📊 Merge Reports	15s
internal / 📊 Merge Reports	14s
All PR Checks	3s
	1h 42m 40s

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