fix windows ci

Summary: Pull Request resolved: facebook#22557

Differential Revision: D13381568

Pulled By: hramos

fbshipit-source-id: db2ca0615c4cde5b0a4ae8ae824a005bcc1e2a1c

Author: gengjiawen

.appveyor/config.yml

@@ -1,8 +1,8 @@
 environment:
     ANDROID_HOME: "C:\\android-sdk-windows"
     ANDROID_NDK: "C:\\android-sdk-windows\\android-ndk-r17c"
-    ANDROID_BUILD_VERSION: 27
-    ANDROID_TOOLS_VERSION: 27.0.3
+    ANDROID_BUILD_VERSION: 28
+    ANDROID_TOOLS_VERSION: 28.0.2
 
     GRADLE_OPTS: -Dorg.gradle.daemon=false