use github secrets to add local properties

.github/workflows/android.yaml

@@ -26,6 +26,8 @@ jobs:
 
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
+    - name: Add API_BASE_URL to local.properties
+      run: echo "API_BASE_URL= ${{ secrets.API_BASE_URL }}" >> local.properties
     - name: Build with Gradle
       run: ./gradlew clean build
     - name: Test with Gradle