Updating Travis osx_image to 11.3.

Ruben Nine · Ruben Nine · commit c7ed1318d367 · 2020-01-16T13:40:26.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode10.3
+osx_image: xcode11.3
 branches:
   only:
     - master
