Best practices for Auth Tokens for usage across a team?

We are working on uploading Source Maps to Sentry for a variety of repos we maintain. We know that an Auth Token is needed, but it is not 100% clear who maintains it for use. Does one engineer on a team create one and include it in the code for all environments? Is there a way to create a project specific Auth Token that the team can share, rather than a single team member owning it?