Is it possible using a token instead of being authenticated?

[jesus-mg-ios]

Is your feature request related to a problem? Please describe.
Add the ability to create tasks from github without being authenticated by the user, this means using a token with restrictions on it. For example, you want to give the ability to create issues for a bunch of users in a repo or some repos but no other abilities eg the Customer support team. So the organization could create a restricted token and use it on a slack channel.

Describe the solution you'd like
The above paragraph.

Describe alternatives you've considered
There are no alternatives, maybe leaving GitHub and going to Jira and Bitbucket.

Additional context
If there were any other alternatives without registering each user in github and creating an account for them, inviting them to repos, and so on ... (Inviting but trying to not share the code on it.... this is impossible I think)