You need to select a user account for `renovate` to assume the identity of, and generate a Personal Access Token. It is recommended to be `@renovate-bot` if you are using a self-hosted server and can pick any username you want.
It is also recommended that you configure `config.gitAuthor` with the same identity as your Renovate user, e.g. like `"gitAuthor": "Renovate Bot <bot@renovateapp.com>"`.
