correct link to documentation for GitLab personal access tokens (#7842)

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

docs/usage/self-hosting.md

@@ -200,7 +200,7 @@ Configure it either as `token` in your `config.js` file, or in environment varia
 
 #### GitLab CE/EE
 
-First, [create a personal access token](https://docs.gitlab.com/ee/api/README.html#personal-access-tokens) for the bot account (select "api" scope).
+First, [create a personal access token](https://docs.gitlab.com/ee/user/profile/personal_access_tokens.html) for the bot account (select "api" scope).
 Configure it either as `token` in your `config.js` file, or in environment variable `RENOVATE_TOKEN`, or via CLI `--token=`.
 Don't forget to configure `platform=gitlab` somewhere in config.