feat(sourcemap): move oxc_sourcemap to github.com/oxc-project/oxc-sourcemap

[Boshen]

It's mostly stable so we can v1.0.0 it.

And we will create cyclic dependency with StringWizard soon.

[graphite-app]

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[codspeed-hq]

CodSpeed Performance Report

Merging #7604 will not alter performance

_{Comparing 12-03-feat_sourcemap_move_oxc_sourcemap_to_github.com_oxc-project_oxc-sourcemap (348d4f4) with main (7c62a33)}

Summary

✅ 29 untouched benchmarks
⁉️ 1 dropped benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	12-03-feat_sourcemap_move_oxc_sourcemap_to_github.com_oxc-project_oxc-sourcemap	Change
⁉️	sourcemap[cal.com.tsx]	62.1 ms	N/A	N/A

[Boshen]

Merge activity

• Dec 3, 6:59 AM EST: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 3, 6:59 AM EST: A user added this pull request to the Graphite merge queue.
• Dec 3, 7:04 AM EST: A user merged this pull request with the Graphite merge queue.