[segmentation.tests] Adjust threshold for montgomery histogram comparison

src/mednet/libs/segmentation/tests/test_montgomery.py

@@ -130,5 +130,5 @@ def test_model_transforms_image_quality(database_checkers, datadir, model_name):
         datamodule,
         reference_histogram_file,
         compare_type="statistical",
-        pearson_coeff_threshold=0.005,
+        pearson_coeff_threshold=0.5,
     )