After performing an action by octokit with OAuth app, how to show OAuth app name instead of github username?

Question

I have registered a GitHub OAuth app under my personal GitHub account, and using octokit I am making an automation app.

When octokit perform any action let's say add label to issue, then GitHub says:

"anmol-kumar0815" added label, instead of AutomatedApp added label.

PS: "anmol-kumar0815" is my github username and "AutomatedApp" is the name of my OAuth app.

I want github to display "AutomatedApp added a label." but github display's "anmol-kumar0815 added a label".

Here is my code:

def client
  @_client ||= Octokit::Client.new(bearer_token: github_access_token, auto_paginate: true)
end

def labels(repo_full_name)
  client.labels(repo_full_name)
end