test history page: change "retry" link to point to the self service interface

The retry link (recycling icon) current points to /api/v1/retry/<%= test.run_id %>, but it should point instead to /user/<current_user>/retry/<%= test.run-id %>.

However, the package history page requires has authentication so we don't know who the user is. We need to use a generic URL (e.g. /user/:user/retry/9999), and have the self service app itself redirect to the correct location, or to the login page if the user it not logged in.