Fix group bot token name in REST API and GraphQL

What does this MR do and why?

Describe in detail what your merge request does and why.

With https://gitlab.com/gitlab-org/security/gitlab/-/merge_requests/1993, group access token names became hidden from the REST API and GraphQL queries for all users.

This MR introduces an additional check so that users who can read_group can now read group bot names. This includes guests+ in a private group, and all users including non-members in a public group.

Before:

After:

Screenshots or screen recordings

These are strongly recommended to assist reviewers and reduce the time to merge your change.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

app/graphql/types/user_interface.rb

@@ -136,6 +136,10 @@ def resolve_type(object, context)
     def redacted_name
       return object.name unless object.project_bot?
 
+      if object.groups
+        return object.name if context[:current_user]&.can?(:read_group, object.groups.first)
+      end
+
       return object.name if context[:current_user]&.can?(:read_project, object.projects.first)
 
       # If the requester does not have permission to read the project bot name,