Update android.yml

Author: queuejw

.github/workflows/android.yml

@@ -21,6 +21,8 @@ jobs:
         cache: gradle
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
+    - name: Setup Android SDK
+      uses: android-actions/setup-android@v2
     - name: Build Neko11 with Gradle
       run: ./gradlew assembleDebug
     - name: Upload artifact