Cleanup: remove unicode prefix, remove explicit inheritance from object (#11015)

* Address UP025: remove unicode literals from strings.

* Address UP004: class inherits from 'object'.

plugins/module_utils/cmd_runner_fmt.py

@@ -20,7 +20,7 @@ def _ensure_list(value):
     return list(value) if is_sequence(value) else [value]
 
 
-class _ArgFormat(object):
+class _ArgFormat:
     def __init__(self, func, ignore_none=True, ignore_missing_value=False):
         self.func = func
         self.ignore_none = ignore_none