[ci] Use the production Xcode 9.3 image for Travis CI builds

mattrubin · mattrubin · commit 81956753d501 · 2018-04-23T23:01:01.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,7 +5,7 @@ language: objective-c
 xcode_workspace: Authenticator.xcworkspace
 xcode_scheme: Authenticator
 
-osx_image: xcode9.3beta
+osx_image: xcode9.3
 
 env:
   - RUNTIME="iOS 9.0"  DEVICE="iPhone 4s"
