urls.option_positions_url parameter

[slypete]

https://github.com/jmfernandes/robin_stocks/blob/6dc9dacae3e8882ffed3e3cf0eced02b147ef575/robin_stocks/robinhood/urls.py#L224C10-L224C10

The only parameter to this method, account_number, was intended to be optional, but it's mistakenly required. As a result, calls that don't pass the parameter result in a runtime error. For example:

robin_stocks/robin_stocks/robinhood/options.py

Line 79 in 6dc9dac

url = option_positions_url()