change github action to deploy website

.github/workflows/documentation.yml

@@ -46,14 +46,8 @@ jobs:
       - name: 🔨 Build
         run: |
           cd website
-          if [ -e yarn.lock ]; then
           yarn install --frozen-lockfile
-          elif [ -e package-lock.json ]; then
-          npm ci
-          else
-          npm i
-          fi
-          npm run build
+          yarn build
 
       - name: 📂 Sync files
         uses: SamKirkland/FTP-Deploy-Action@4.0.0