Merge pull request swiftlang#39892 from aschwaighofer/distributed_actor_default_test_restriction

Mark distributed_actor_default_init/deinit tests as requiring macOS

Author: aschwaighofer

test/Distributed/SIL/distributed_actor_default_deinit_sil.swift

@@ -2,6 +2,8 @@
 // REQUIRES: concurrency
 // REQUIRES: distributed
 
+// REQUIRES: OS=macosx
+
 import _Distributed
 
 class SomeClass {}

test/Distributed/SIL/distributed_actor_default_init_sil.swift

@@ -2,6 +2,8 @@
 // REQUIRES: concurrency
 // REQUIRES: distributed
 
+// REQUIRES: OS=macosx
+
 import _Distributed
 
 class SomeClass {}