fix(url_plugin): return true to stop ast traverse

[nilptr]

Summary

fix #10546

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

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[codspeed-hq]

CodSpeed Performance Report

Merging #10570 will not alter performance

_{Comparing nilptr:ning.chen/fix/new-url-magic-comment (d61069a) with main (0b4cbec)}

🎉 Hooray! codspeed-rust just leveled up to 2.7.2!

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Summary

✅ 12 untouched benchmarks

[ahabhgk]

Thanks!