Pin dependency node to 20.19.4

Author: renovate[bot]

.github/workflows/main.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 20.19.4
 
       - name: Install dependencies
         run: npm install