Fixes import order (again)

Author: yamokosk

cppcheck_junit.py

@@ -6,10 +6,10 @@
 
 import argparse
 import collections
-import os
 from datetime import datetime
-import sys
+import os
 from socket import gethostname
+import sys
 from typing import Dict, List  # noqa: F401
 from xml.etree import ElementTree