Trying to create a custom connector for the GitHub Rest API and having problems with the authentication.
All my attempts for far produced a "bearer" token for the authentication being passed in the header, instead of a "token" token:

Resources in the REST API - GitHub Docs
GitHub requires the token to be prefixed with "token " and not with "bearer ". Is there any way to tweak this?
(tried OAuth with GitHub and generic provider as well as basic auth)