[Tests] Distributed: XFAIL protocol requirement accessor test on Windows

Author: xedin

test/Distributed/Runtime/distributed_actor_remoteCall_protocol_method_in_presence_of_multiple_systems.swift

@@ -12,6 +12,9 @@
 // UNSUPPORTED: use_os_stdlib
 // UNSUPPORTED: back_deployment_runtime
 
+// FIXME(distributed): Distributed actors currently have some issues on windows, isRemote always returns false. rdar://82593574
+// UNSUPPORTED: OS=windows-msvc
+
 import Distributed
 import FakeDistributedActorSystems