feat(ios): Upgrading Xcode to 11.0 (react-native-community#45 by @spr…

…ingcoil)

BREAKING CHANGE: You should confirm that your app is able to build on Xcode 11 before upgrade, however, most app will already support this.

src/executors/macos.yml

@@ -2,7 +2,7 @@ parameters:
   xcode_version:
     description: The version of Xcode to use. See here for the list of supported versions https://circleci.com/docs/2.0/testing-ios/#supported-xcode-versions
     type: string
-    default: '10.1.0'
+    default: '11.0.0'
   resource_class:
     description: Changes the resource class of the executor. Requires a support request to enable the resource_class parameter. See https://circleci.com/docs/2.0/configuration-reference/#resource_class
     type: string