Document `password` query parameter

[lukebakken]

trafficstars

Is your feature request related to a problem? Please describe.

The password AMQP URI query parameter is not documented. It is required when using certificates that have passwords.

https://vmware.slack.com/archives/C0RDGG81Z/p1683709809948449?thread_ts=1683641416.511669&cid=C0RDGG81Z

Describe the solution you'd like

Add password to this page: https://www.rabbitmq.com/uri-query-parameters.html

Describe alternatives you've considered

N/A

Additional context

https://github.com/rabbitmq/rabbitmq-server/issues/8129