Update build tools

cognition9144 · cognition9144 · commit a5cd23070a55 · 2019-08-27T20:44:55.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,8 +7,8 @@ jdk:
 android:
   components:
     - tools
-    - build-tools-28.0.3
-    - android-28
+    - build-tools-29.0.2
+    - android-29
     - extra-android-m2repository
   licenses:
     - ".+"
