Update tests/integration/test_reg_loss_integration.py

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: ytl0623 <david89062388@gmail.com>

Author: ytl0623

tests/integration/test_reg_loss_integration.py

@@ -99,7 +99,7 @@ def forward(self, x):
             optimizer.step()
         self.assertGreater(init_loss, loss_val, "loss did not decrease")
 
-def test_lncc_gaussian_kernel_gt3_identical_images(self):
+    def test_lncc_gaussian_kernel_gt3_identical_images(self):
         """
         Regression test for make_gaussian_kernel truncated parameter bug.
         LNCC on identical inputs must be close to -1.0 for gaussian kernel_size > 3.