fix(mge/test): fix pytest failed issue

GitOrigin-RevId: 96df4704065fc2153770577e9ca54fd432f6b328

imperative/python/test/integration/test_save_load.py

@@ -9,6 +9,7 @@ from megengine.module import Module
 
 class Simple(Module):
     def __init__(self):
+        super().__init__()
         self.a = Parameter(1.23, dtype=np.float32)
 
     def forward(self, x):