Command name incorrect when running python -m versup

[buddly27]

When running the command via python -m, we get:

>>> python -m versup -h
Usage: __main__.py [OPTIONS] COMMAND [ARGS]...

This is because click default to sys.args[0] if the name is not explicitly given:

• https://click.palletsprojects.com/en/7.x/api/?highlight=autodetection#click.version_option
• https://github.com/pallets/click/blob/1658d7230ddc85c094895688984488f51c5c6e1e/src/click/core.py#L885

It would be great to update versup.command_line.main() to:

def main():
    cli(prog_name="versup")