ci: use Node 22 for eslint checks

Author: naorpeled

.github/workflows/pull-request.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Set up node
         uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "22"
       - name: Install dependencies
         run: npm ci
       - name: Run ESLint