Change LFS label to be `gl-button`
<!--IssueSummary start-->
<details>
<summary>
Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards.
</summary>
- [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=277434)
</details>
<!--IssueSummary end-->
The following discussion from !46406 should be addressed:
- [ ] @afontaine started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/46406#note_443251174): (+1 comment)
> It looks like this behaviour is somewhat available through `gl-button`, but I would advise against it for now gitlab-org/gitlab-ui#1010
>
> Perhaps just keep an eye on things to transition to a GitLab UI component for now :thumbsup:
issue