Fix import order for pylint.

Author: tillahoffmann

test/test_generate_quantities.py

@@ -6,13 +6,13 @@
 import logging
 import os
 import pickle
-import pytest
 import shutil
 import unittest
 from test import CustomTestCase
 
 import numpy as np
 import pandas as pd
+import pytest
 from numpy.testing import assert_array_equal, assert_raises
 from testfixtures import LogCapture
 

test/test_sample.py

@@ -12,11 +12,11 @@
 import unittest
 from multiprocessing import cpu_count
 import pickle
-import pytest
 from test import CustomTestCase
 from time import time
 
 import numpy as np
+import pytest
 from testfixtures import LogCapture, StringComparison
 
 import cmdstanpy.stanfit