Support --download-browser-driver flag in list-roles command for automation

[marcportabellaclotet-mt]

I am using saml2aws and automating the creation of aws profiles.

Currently, I use the browser driver and start with the configuration step:

saml2aws configure xxxx

After that, I would like to automate the AWS profile creation by running the list-roles command and parsing its output

However, when I run list-roles, I get an error saying that the browser driver needs to be downloaded first. This breaks my automation because it forces me to run a login step beforehand—without knowing the available AWS roles—and creates unnecessary AWS profiles.

Feature Request

To avoid this, I’d like to request support for the --download-browser-driver flag in the list-roles command, so that the browser driver can be downloaded automatically without requiring a prior login.

I have created a PR to achieve this