feat(nitro): Handle sourcemap preparation and upload #46216

Job	Run time
job_get_metadata / Get Metadata	6s
Check file formatting	3m 42s
Check lockfile	3m 15s
Build	10m 23s
Check PR branches	5s
Size Check	2m 5s
Lint	1m 13s
Cloudflare Integration Tests	1m 55s
Circular Dependency Check	1m 49s
Prepare E2E tests	3m 3s
Node (22) Unit Tests	1m 30s
Check for faulty .d.ts files	35s
Node (18) Unit Tests	1m 45s
Browser Unit Tests	1m 33s
Node (20) Unit Tests	1m 36s
Node (24) Unit Tests	1m 25s
Remix (Node ${{ matrix.node }}) Tests	0s
Deno Unit Tests	0s
Node (${{ matrix.node }})${{ (((matrix.typescript && format(' (TS {0})', matrix.typescript))) \|\| '') }} Integration Tests	0s
Playwright ${{ matrix.bundle }}${{ ((matrix.project && (matrix.project != 'chromium') && format(' {0}', matrix.project)) \|\| '') }}${{ ((matrix.shard && format(' ({0}/{1})', matrix.shard, matrix.shards)) \|\| '') }} Tests	0s
Bun Integration Tests	0s
PW ${{ matrix.bundle }} Tests	0s
Upload Artifacts	0s
Node (${{ matrix.node }})${{ (((matrix.typescript && format(' (TS {0})', matrix.typescript))) \|\| '') }} Node-Core Integration Tests	0s
Bun Unit Tests	0s
E2E nitro-3 Test	1m 46s
E2E ${{ (matrix.label \|\| matrix.test-application) }} Test (optional)	-1s
All required jobs passed or were skipped	5s
	37m 50s

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