opt: migrate to pnpm

Author: KOWX712

.github/workflows/android.yml

@@ -26,11 +26,23 @@ jobs:
         distribution: 'temurin'
         java-version: 21
 
+    - name: Setup pnpm
+      uses: pnpm/action-setup@v4
+      with:
+        version: 'latest'
+
+    - name: Setup Node
+      uses: actions/setup-node@v4
+      with:
+        node-version: 'latest'
+        cache: 'pnpm'
+        cache-dependency-path: webui/pnpm-lock.yaml
+
     - name: Build WebUI
       run: |
         cd webui
-        npm ci
-        npm run build
+        pnpm install --frozen-lockfile
+        pnpm run build
 
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew