ci: use Node.js 24 for wasm publishing

[kdy1]

Description:

The WASM publishing matrix was still using Node.js 20 while installing npm@latest. In the failed publish run, that resolved to npm 12.0.1, which requires Node.js ^22.22.2 || ^24.15.0 || >=26.0.0, so all six WASM packages failed in the Update npm step with EBADENGINE.

Use Node.js 24 for the WASM publish jobs, matching the repository's default Node.js version and the regular npm publish job that successfully installed the same npm release. This only changes the publishing environment and does not change the published packages' runtime compatibility.

Validation:

• actionlint 1.7.12 -color -shellcheck=
• git diff --check
• cargo fmt --all
• cargo clippy --all --all-targets -- -D warnings

Related issue (if exists):

• Failed workflow: https://github.com/swc-project/swc/actions/runs/29675399141

[changeset-bot]

⚠️ No Changeset found

Latest commit: cbd55d9

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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Click here if you're a maintainer who wants to add a changeset to this PR

[chatgpt-codex-connector]

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[codspeed-hq]

Merging this PR will not alter performance

✅ 189 untouched benchmarks
⏩ 61 skipped benchmarks¹

---

_{Comparing kdy1/fix-wasm-publish-node-24 (cbd55d9) with main (d1a1e23)²}

Footnotes

1. 61 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (1b17f34) during the generation of this report, so d1a1e23 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩