feat(ci): enable flutter cache

.forgejo/workflows/deploy.yml

@@ -11,7 +11,8 @@ jobs:
         uses: https://github.com/subosito/flutter-action@v2
         with:
           channel: stable
-          flutter-version: 3.35.1 
+          flutter-version: 3.35.1
+          cache: true
       - run: git config --global --add safe.directory /opt/hostedtoolcache/flutter/stable-3.35.1-x64
       - run: flutter build web --release --wasm --base-href /app/
       - run: sshpass -p "${{ secrets.DEPLOY_PASSWORD }}" scp -o StrictHostKeyChecking=accept-new -rp build/web ${{ secrets.DEPLOY_USERNAME }}@${{ secrets.DEPLOY_ADDRESS }}:${{ secrets.DEPLOY_PATH }}