Group Access Tokens are counted as licensed users
### Summary
While using the [Group access tokens](https://docs.gitlab.com/ee/user/group/settings/group_access_tokens.html)feature on gitlab.com, the bots created are consuming the seats and users over license field is incrementing by 1 user for each project access token.
This appears to only be an issue for gitlab.com. In self managed instances it appears that the users are not taking up a seat.
### Steps to reproduce
* Log in to GitLab.
* Navigate to the group you would like to create an access token for.
* In the Settings menu choose Access Tokens.
* Choose a name and optional expiry date for the token.
* Choose the desired scopes.
* Click the Create project access token button
* Navigate to Billing
* Navigate to "See Usage"
* Note that "@group_XXXX_bot" users are showing up and counting against license seats
| Before adding group access token | After adding group access token |
| ------ | ------ |
|  |  |
### What is the current *bug* behavior?
Group access tokens are counting against license seats.
### What is the expected *correct* behavior?
Group access tokens are not counted against license seats.
#### Results of GitLab environment info
_Gitlab.com_
### Possible fixes
_Unknown_
### Related Items
Related to #223695.
Related to #214046.
issue