Change type as we don't need real device

Author: aurimasc

.yamato/upm-ci.yml

@@ -123,7 +123,7 @@ test_Android_{{ editor.version }}:
 test_iOS_{{ editor.version }}:
   name: Test {{ editor.version }} on iOS
   agent:
-    type: Unity::mobile::iPhone
+    type: Unity::VM::osx
     image: mobile/ios-macos-10.15:latest
     flavor: i1.large
   variables: