Please avoid raising generic Exception when a more detailed one is available

[ckuethe]

Exception: Received status code: 422 (https://gitea.example.com/api/v1/repos/migrate), {"message":"Migration failed: clone wiki error: exit status 128 - fatal: unable to access 'https://github.com/torvalds/linux.git/': Connection timed out after 300106 milliseconds\n.","url":"https://gitea.example.com/api/swagger"}

Seems like this could be a TimeoutError or maybe a generic GiteaException - just something more specific than a base Exception