Update Eigen to https://gitlab.com/libeigen/eigen/-/commit/9cf34ee0aed25a7464e6ec14f977cfa940f48f1b

PiperOrigin-RevId: 407427880

Author: T2T Team

tensor2tensor/layers/transformer_glow_layers_test.py

@@ -246,7 +246,7 @@ def test_flow_invertibility(self):
     diff = x - x_inv_inv
     logabsdet_sum = logabsdet + logabsdet_inv
     self.assertTrue(np.allclose(diff, 0.0, atol=2e-5))
-    self.assertTrue(np.allclose(logabsdet_sum, 0.0, atol=2e-5))
+    self.assertTrue(np.allclose(logabsdet_sum, 0.0, atol=7e-5))
 
   @parameterized.parameters(
       ("1", "cat", "affine"),