Deprecate non-expiring access tokens
## Problem
In https://gitlab.com/gitlab-org/gitlab/-/issues/369123+ we plan to remove support for any access tokens that don't have an expiry. These tokens will then get a populated expiration date of +1 year. This needs to be announced at least 3 releases ahead of time.
This post is to announce the deprecation of these tokens.
### To identify/extend tokens
See https://gitlab.com/gitlab-org/gitlab/-/issues/369122#note_1927926624 that was added to help reduce the impact of the token expiration
issue