Update actions/setup-node action to v4

Author: renovate[bot]

.github/workflows/main.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Setup Node.js environment
-        uses: actions/setup-node@v3.8.2
+        uses: actions/setup-node@v4.0.0
         with:
           node-version-file: '.nvmrc'