feat(nitro): Handle sourcemap preparation and upload #45832

Job	Run time
job_get_metadata / Get Metadata	6s
Check PR branches	3s
Build	7m 19s
Check lockfile	3m 16s
Check file formatting	44s
Browser Unit Tests	1m 33s
Lint	1m 9s
Circular Dependency Check	1m 37s
Node (18) Unit Tests	1m 23s
Size Check	1m 58s
Prepare E2E tests	2m 57s
Cloudflare Integration Tests	1m 35s
Check for faulty .d.ts files	45s
Node (20) Unit Tests	2m 2s
Node (24) Unit Tests	1m 30s
Node (22) Unit Tests	1m 28s
Remix (Node ${{ matrix.node }}) Tests	0s
Bun Unit Tests	0s
Upload Artifacts	0s
Bun Integration Tests	0s
PW ${{ matrix.bundle }} Tests	0s
Node (${{ matrix.node }})${{ (((matrix.typescript && format(' (TS {0})', matrix.typescript))) \|\| '') }} Node-Core Integration Tests	0s
Deno Unit Tests	0s
Playwright ${{ matrix.bundle }}${{ ((matrix.project && (matrix.project != 'chromium') && format(' {0}', matrix.project)) \|\| '') }}${{ ((matrix.shard && format(' ({0}/{1})', matrix.shard, matrix.shards)) \|\| '') }} Tests	0s
Node (${{ matrix.node }})${{ (((matrix.typescript && format(' (TS {0})', matrix.typescript))) \|\| '') }} Integration Tests	0s
E2E nitro-3 Test	2m 2s
E2E ${{ (matrix.label \|\| matrix.test-application) }} Test (optional)	-1s
All required jobs passed or were skipped	5s
	31m 31s

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