Disable visionOS CI for right now

Author: mattmassicotte

.github/workflows/ci.yml

@@ -26,7 +26,8 @@ jobs:
           - "platform=macOS,variant=Mac Catalyst"
           - "platform=iOS Simulator,name=iPhone 12"
           - "platform=tvOS Simulator,name=Apple TV"
-          - "platform=visionOS Simulator,name=Apple Vision Pro"
+          # this hangs in GitHub actions right now
+          # - "platform=visionOS Simulator,name=Apple Vision Pro"
 
     steps:
       - uses: actions/checkout@v4