Fix typo in CPU offload test (#7542)

update

Author: DN6

tests/pipelines/test_pipelines_common.py

@@ -1181,7 +1181,7 @@ def test_sequential_offload_forward_pass_twice(self, expected_max_diff=2e-4):
         inputs = self.get_dummy_inputs(generator_device)
         output_with_offload = pipe(**inputs)[0]
 
-        pipe.nable_sequential_cpu_offload()
+        pipe.enable_sequential_cpu_offload()
         inputs = self.get_dummy_inputs(generator_device)
         output_with_offload_twice = pipe(**inputs)[0]