docs(quartodoc): render_methods is showing arguments as a list

[gforsyth]

I noticed this while working on #10557 but I think it's been reported on Zulip, as well.

Something in our render_methods (or render_method) helpers is rendering function signatures with all of the args as list elements, so instead of

# desired output
connect(self, *args, **kwargs)

we're instead getting

connect(['self', '*args', '**kwargs'])