Add access token information to API log

What does this MR do and why?

This MR will add information about the used access token to the API log.

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How to set up and validate locally

1. Create an access token at http://localhost:3000/-/profile/personal_access_tokens
2. Use the created access token to access the api:

 curl http://localhost:3000/api/v4/user -H "private-token: <token>"

3. Observe the token information in gitlab/log/api_json.log:

{
  "time": "2022-07-16T17:34:23.235Z",
  "severity": "INFO",
  "duration_s": 0.15425,
  "db_duration_s": 0.02159,
  "view_duration_s": 0.13266,
  "status": 200,
  "method": "GET",
  "path": "/api/v4/user",
  "params": [],
  "host": "localhost",
  "remote_ip": "127.0.0.1",
  "ua": "curl/7.84.0",
  "route": "/api/:version/user",
  "user_id": 103,
  "username": "project_8_bot",
  "token_type": "PersonalAccessToken",
  "token_id": 9,
...
}

MR acceptance checklist

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