chore: release v5.0.0

[Boshen]

🤖 New release

• oxc_sourcemap: 4.2.1 -> 5.0.0 (⚠ API breaking changes)

⚠ oxc_sourcemap breaking changes

--- failure constructible_struct_adds_field: externally-constructible struct adds field ---

Description:
A pub struct constructible with a struct literal has a new pub field. Existing struct literals must be updated to include the new field.
        ref: https://doc.rust-lang.org/reference/expressions/struct-expr.html
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/constructible_struct_adds_field.ron

Failed in:
  field JSONSourceMap.version in /tmp/.tmp0nd5Zz/oxc-sourcemap/src/decode.rs:15

Changelog

5.0.0 - 2025-10-14

Added

• integrate tc39/source-map-tests for spec compliance testing (#190)

Other

• bump json-escape-simd (#195)
• (deps) lock file maintenance rust crates (#194)
• remove token equality check from encoding hot loop (#189)
• optimize VLQ decode and capacity estimation

---

This PR was generated with release-plz.

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[codspeed-hq]

CodSpeed Performance Report

Merging #188 will degrade performances by 3.53%

_{Comparing release-plz-2025-10-07T11-35-40Z (fedaa2e) with main (19c9c1e)}

Summary

⚡ 3 improvements
❌ 1 regression
✅ 1 untouched

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

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	from_json_string	16.6 µs	16.4 µs	+1.25%
⚡	generate_lookup_table	1.3 µs	1.3 µs	+2.25%
⚡	to_json_string	5.1 µs	5 µs	+1.16%
❌	add_name_add_source_and_content	1.6 µs	1.7 µs	-3.53%