chore: pin github workflow to node 24

setup-node does not use actual LTS and is currently picking up
the current release (26) which doesn't work currently with the
yargs version locked in by c8.

Author: joyeecheung

.github/workflows/nodejs.yml

@@ -15,9 +15,9 @@ jobs:
       - name: Use latest Node.js LTS
         uses: actions/setup-node@v6
         with:
-          node-version: lts/*
+          node-version: 24
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Lint
         run: npm run lint