feat: prepare "contrib" area

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

Author: jkowalleck

cyclonedx/model/__init__.py

@@ -22,8 +22,8 @@
 from a `cyclonedx.parser.BaseParser` implementation.
 """
 
-import sys
 import re
+import sys
 from collections.abc import Generator, Iterable
 from datetime import datetime
 from enum import Enum