Update travis config to build with Xcode 12

ps2 · ps2 · commit ffb08efb6640 · 2020-09-17T11:32:50.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode11
+osx_image: xcode12
 # xcode_sdk: iphonesimulator11
 # xcode_project: Loop.xcodeproj
 # xcode_scheme: Loop
