chore(ci): use nvmrc

Author: aheckmann

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       - name: 🟢 Setup Node.js runtime
         uses: actions/setup-node@v4
         with:
-          node-version: 22
+          node-version-file: '.nvmrc'
           cache: 'pnpm'
 
       - name: 📚 Install project dependencies