ci: fix failing `Self tests` task on the `windows-msvc` job 2

vlib/v/tests/interface_edge_cases/fn_returning_voidptr_casted_as_interface_test.v

@@ -20,7 +20,7 @@ fn resource__null() &IAbc {
 
 fn test_fn_returning_voidptr_casted_as_interface_works() {
 	pi := resource__null()
-	$if !msvc {
+	$if msvc {
 		// TODO: understand the root reason why msvc produces something like `&IAbc(e42aff650)` here
 		assert f(pi).contains('&IAbc(')
 	} $else {