Update actions/setup-node action to v4

Author: renovate[bot]

.github/workflows/generator.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           ruby-version: "3.2"
           bundler-cache: true
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
           node-version: 18
       - run: bin/generate_files