ci: opt into Node.js 24 for GitHub Actions runners

[netmindz]

Set FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true across all affected workflows to avoid deprecation warnings ahead of the June 2026 forced migration.

Summary by CodeRabbit

• Chores
  • Updated CI/CD workflows across build, nightly, release, and user modifications pipelines to use Node.js 24 for JavaScript-based actions.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 7e2bdc90-532b-4dd1-ad53-cced70fb5a72

📥 Commits

Reviewing files that changed from the base of the PR and between a535c56 and 5f219e6.

📒 Files selected for processing (4)

• .github/workflows/build.yml
• .github/workflows/nightly.yml
• .github/workflows/release.yml
• .github/workflows/usermods.yml

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Walkthrough

Adds the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable to four GitHub Actions workflow files, configuring JavaScript-based actions to execute under Node.js 24 across build, nightly, release, and usermods workflows.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflows .github/workflows/build.yml, .github/workflows/nightly.yml, .github/workflows/release.yml, .github/workflows/usermods.yml	Added workflow-level environment variable FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true to force JavaScript-based GitHub Actions to run under Node.js 24.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related issues

• GitHub actions warning about deprecated Node.js 20 actions #5422: This PR directly implements the suggested workflow configuration by adding the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable across all specified GitHub Actions workflows to opt into Node.js 24 for JavaScript actions.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'ci: opt into Node.js 24 for GitHub Actions runners' clearly and accurately summarizes the main change: adding Node.js 24 opt-in configuration across CI workflows.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[softhack007]

@netmindz should we also update .nvmrc ("20.18") or is this file just for "npm" when called from platformio buildenvs?