ci: bump Node from 22 to 24 to match local lock-file generator

Local development uses Node 24 (npm 11), and the npm-11-shaped lock
file confuses npm 10 (which ships with Node 22). Aligning the runner's
Node version with the one that produced package-lock.json sidesteps
the npm ci mismatch without per-workflow upgrade steps.

Author: sankhesh

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v4
         with:
-          node-version: 22
+          node-version: 24
           cache: 'npm'
       - name: Install dependencies
         run: npm ci

.github/workflows/publish.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 22
+          node-version: 24
       - name: Install dependencies
         run: npm ci
       - name: Build