Upgrades `pnpm/action-setup` from v4.2.0 to v4.4.0 across all 16
workflow files and the shared `setup-frontend` action.
## Why
GitHub Actions will force Node.js 24 as the default starting June 2,
2026. The v4.2.0 pin ran on Node.js 20 and emitted deprecation warnings
on every CI run. v4.4.0 was released specifically to address this,
updating the action runtime to Node.js 24.
- Fixes the warning: *"pnpm/action-setup@41ff72... Actions will be
forced to run with Node.js 24 by default starting June 2nd, 2026"*
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10137-ci-upgrade-pnpm-action-setup-to-v4-4-0-Node-js-24-3266d73d36508176b157fcd1d33f2274)
by [Unito](https://www.unito.io)
## Problem
The lint/format CI workflow was broken for fork PRs in two ways:
### 1. Node version mismatch in setup-frontend action
The `setup-frontend` shared action (created in #8377) was missed when
Node version was standardized to `.nvmrc` in #9521. It still used
`node-version: 'lts/*'` instead of `node-version-file: '.nvmrc'`.
### 2. Fork PRs with lint issues silently passed CI
Fork PRs with auto-fixable lint/format issues got a **green checkmark**
despite having unfixed issues:
1. Auto-fix steps (`lint:fix`, `format`) fix issues in the workspace
2. `Commit changes` is correctly skipped for forks (can't push to fork
branches)
3. `Final validation` passes because it runs on the already-fixed
workspace
4. The `Comment on PR about manual fix needed` step tries to post a
comment via `actions/github-script`, but fork PRs have a read-only
`GITHUB_TOKEN` — the comment silently fails (`continue-on-error: true`)
5. **Result**: workflow reports success, contributor thinks their code
is clean
## Fix
- **setup-frontend**: Use `node-version-file: '.nvmrc'` instead of
`node-version: 'lts/*'`
- **ci-lint-format**: Replace the broken fork comment step with an
explicit `exit 1` that fails CI and prints clear fix instructions in the
log. This follows the principle from `.github/AGENTS.md`: fork PRs can't
post comments, so don't try.
## Testing
- [ ] Verify fork PRs with clean code still pass
- [ ] Verify fork PRs with lint issues now properly fail (instead of
silently passing)
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9846-fix-restore-fork-PR-lint-format-CI-workflow-3226d73d3650811cb5bfe9f1f989cc0c)
by [Unito](https://www.unito.io)
