Merge pull request #174 from NativeScript/zbranzov/build-tools

chore: update build tools

Author: DimitarTodorov

.travis.yml

@@ -72,7 +72,7 @@ android:
   components:
     - tools
     - platform-tools
-    - build-tools-28.0.2
+    - build-tools-28.0.3
     - android-28
     - extra-android-m2repository
     - sys-img-armeabi-v7a-android-21