Plan tox build fixes

Agent-Logs-Url: https://github.com/wolph/python-progressbar/sessions/7a92701d-42dc-4a5a-85a7-458e27ca00b2

Co-authored-by: wolph <270571+wolph@users.noreply.github.com>

Author: Copilot

progressbar/__main__.py

@@ -62,14 +62,12 @@ def create_argument_parser() -> argparse.ArgumentParser:
     Create the argument parser for the `progressbar` command.
     """
 
-    parser = argparse.ArgumentParser(
-        description="""
+    parser = argparse.ArgumentParser(description="""
         Monitor the progress of data through a pipe.
 
         Note that this is a Python implementation of the original `pv` command
         that is functional but not yet feature complete.
-    """
-    )
+    """)
 
     # Display switches
     parser.add_argument(