CircleCI: use Xcode 12.

arangato · arangato · commit 7ef99cc4fbda · 2020-08-24T11:16:37.000+03:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     macos:
-      xcode: "10.0.0"
+      xcode: "12.0.0"
 
     steps:
       - checkout
