Temporarily disable distributed_actor_init_local.swift test because it's flaky (swiftlang#39894)

Author: kubamracek

test/Distributed/Runtime/distributed_actor_init_local.swift

@@ -11,6 +11,9 @@
 // FIXME(distributed): we need to revisit what's going on on windows with distributed actors rdar://84574311
 // UNSUPPORTED: OS=windows-msvc
 
+// Disabled temporarily until we figure out why the test is flaky.
+// REQUIRES: rdar84586299
+
 import _Distributed
 
 enum MyError: Error {