chore(ci): bump node version

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

.github/workflows/nightly.yml

@@ -2,7 +2,7 @@ name: Nightly Build
 
 on:
   schedule:
-    - cron: '0 2 * * *'
+    - cron: "0 2 * * *"
   workflow_dispatch:
 
 permissions:
@@ -14,52 +14,52 @@ jobs:
     name: Build Nightly Image
     runs-on: ubuntu-latest
     environment: nightly
-    
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           ref: master
-          
+
       - name: Get date
         id: date
         run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
-        
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
-          cache: 'npm'
-          
+          node-version: "26"
+          cache: "npm"
+
       - name: Install dependencies
         run: npm ci
-        
+
       - name: Install backend dependencies
         working-directory: ./backend
         run: npm ci
-        
+
       - name: Build
         run: npm run build
-        
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
-        
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        
+
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-          
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-          
+
       - name: Build and push
         uses: docker/build-push-action@v5
         with: