chore(docker): add registry namespace var to .env.example #3368

Job	Run time
typecheck / typecheck	5m 45s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	2m 31s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	5m 25s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	5m 4s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 29s
units / packages / 🧪 Unit Tests: Packages (1, 1)	3m 35s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 26s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 53s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 23s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	5m 38s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	6m 30s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 42s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 19s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	2m 51s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 21s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 15s
units / internal / 🧪 Unit Tests: Internal (3, 8)	4m 31s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 49s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 1s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 29s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 3s
units / internal / 🧪 Unit Tests: Internal (7, 8)	2m 35s
units / packages / 📊 Merge Reports	20s
units / internal / 📊 Merge Reports	23s
units / webapp / 📊 Merge Reports	47s
	1h 34m 5s

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