Auth with private key or personal access token?

[ZaxR]

Thank you for this great resource - I've been using it for a bunch of projects. To that end, I've hit the pain point of having to update my bitbucket password in multiple pipelines when I'm forced to periodically change my bitbucket password at work. To avoid this issue, I was wondering if there's a way to auth with a private key (similar to the official git resource) or personal access token instead of requiring the username/password? That would make password changes a lot easier to manage. Thanks!