Fix run.taskIdentifier being reported as "unknown" for batch triggers #4364

Job	Run time
typecheck / typecheck	6m 22s
sdk-compat / Cloudflare Workers	2m 9s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	4m 10s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 1s
sdk-compat / Bun Runtime	2m 4s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 43s
sdk-compat / Deno Runtime	2m 1s
sdk-compat / Node.js 22.12 (ubuntu-latest)	2m 3s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 47s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	3m 45s
units / packages / 🧪 Unit Tests: Packages (1, 1)	8m 2s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 10s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	4m 18s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	4m 18s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	4m 19s
units / internal / 🧪 Unit Tests: Internal (5, 8)	3m 53s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 3s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 12s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 47s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	4m 17s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 54s
units / internal / 🧪 Unit Tests: Internal (2, 8)	9m 21s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 23s
units / internal / 🧪 Unit Tests: Internal (8, 8)	3m 3s
units / internal / 🧪 Unit Tests: Internal (3, 8)	6m 24s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 28s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 51s
units / webapp / 📊 Merge Reports	25s
units / packages / 📊 Merge Reports	20s
units / internal / 📊 Merge Reports	22s
	1h 51m 55s

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