Session docstring for verify attribute should note that it supports a string value.

Actual Result

Currently, the Session docstring notes that its verify attribute only supports a bool.

However, session.request supports a string for its verify arg: https://github.com/psf/requests/blob/main/src/requests/sessions.py#L550

and when a verify arg isn't passed to session.request, then session.verify is used instead:

https://github.com/psf/requests/blob/main/src/requests/sessions.py#L776
https://github.com/psf/requests/blob/main/src/requests/sessions.py#L70

Reproduction Steps

N/A

System Information

N/A