update node version

Author: Jeadie

.github/workflows/updated_openapi.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: '18' # Use the version of Node.js your project requires
+          node-version: '20'
 
       - name: Install dependencies
         working-directory: website