Summary

When creating integrations for Jira and using 3LO for apps, invoking https://api.atlassian.com/ex/jira/<cloudid>/rest/api/3/project returns links that are still in version 2, and when they are accessed, that results in an HTTP 403 - Forbidden. Invoking invoking https://api.atlassian.com/ex/jira/<cloudid>/rest/api/2/project results in a 403 as well

Steps to replicate

1. Go through this until you get to: https://api.atlassian.com/oauth/token/accessible-resources
2. Make a call to https://api.atlassian.com/ex/jira/<cloudid>/rest/api/3/project and replace cloud-id
3. Notice that links are in version 2:
   
4. Try to invoke https://api.atlassian.com/ex/jira/<cloudid>/rest/api/2/project and returned 403