Add pep8-naming to our python linting

lib/python/qmk/tests/test_qmk_errors.py

@@ -1,7 +1,7 @@
 from qmk.errors import NoSuchKeyboardError
 
 
-def test_NoSuchKeyboardError():
+def test_nosuchkeyboarderror():
     try:
         raise NoSuchKeyboardError("test message")
     except NoSuchKeyboardError as e: