[lldb][test] Disable TestDataFormatterLibcxxRangesRefView.py

Since the LLDB testing infrastructure for swift.ci doesn't
currently allow running API tests against newly built libcxx,
there is no way for us to guarantee that the necessary `ranges`
headers will be available. So disable the test until the infra
is fixed.

Author: Michael137

lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/ranges/ref_view/TestDataFormatterLibcxxRangesRefView.py

@@ -28,6 +28,7 @@ def check_foo(self):
                 children=self.check_string_vec_children())
 
     @add_test_categories(["libc++"])
+    @skipIf(bugnumber="rdar://109455906") # The standalone build of LLDB doesn't test against custom libcxx builds
     def test_with_run_command(self):
         """Test that std::ranges::ref_view is formatted correctly when printed.
         """