sets correct node version (#4986)

.github/workflows/website.yml

@@ -26,9 +26,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - uses: actions/setup-node@1f8c6b94b26d0feae1e387ca63ccbdc44d27b561 # pin@v2
+      - uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version-file: .nvmrc
       - name: Cache node modules
         id: cacheNodeModules
         uses: actions/cache@v4