Xcode 13 compatibility fixed

Author: diniska

.github/workflows/tests.yml

@@ -2,9 +2,9 @@ name: Tests runner
 
 on:
   push:
-    branches: [ master ]
+    branches: [ void ]
   pull_request:
-    branches: [ master ]
+    branches: [ void ]
 
 jobs:
   build:

Sources/ModalView/ModalView.swift

@@ -6,7 +6,8 @@
 //  Copyright © 2019 Denis Chaschin. All rights reserved.
 //
 
-#if canImport(SwiftUI) && canImport(Combine)
+#if canImport(SwiftUI) && canImport(Combine) && (arch(arm64) || arch(x86_64))
+// arm64 and x86_64 used for compatibility with Xcode 13. More context here: https://stackoverflow.com/a/61954608
 
 import SwiftUI