Allow 'self' for personal access token rotation

[nhollander-alert]

Since GitLab 16.10¹ a personal access token with the api scope can refresh itself by making a call to /personal_access_tokens/:id/rotate with an :id of self².

Tested with the following script:

import { Gitlab } from "@gitbeaker/rest"
const gl = new Gitlab({token: "glpat-..."});
gl.PersonalAccessTokens.rotate("self").then((rotated) => {
    console.log(`New token is ${rotated.token}, expires at ${rotated.expires_at}`);
});

Footnotes

1. This feature is available but undocumented from 16.9. ↩

2. https://docs.gitlab.com/ee/api/personal_access_tokens.html#use-a-request-header ↩

[jdalrymple]

🚀 PR was released in 40.0.0 🚀