Fixes import statement order (flake8)

Author: yamokosk

cppcheck_junit.py

@@ -7,8 +7,8 @@
 import argparse
 import collections
 import os
-import sys
 from datetime import datetime
+import sys
 from socket import gethostname
 from typing import Dict, List  # noqa: F401
 from xml.etree import ElementTree