We are seeing the following error on CI:
```
Errno::EADDRNOTAVAIL:
Failed to open TCP connection to localhost:31337 (Cannot assign requested address - connect(2) for "localhost" port 31337)
```
This is because the job being enqueued makes a HTTP request to the Rails
server but Capybara doesn't start the Rails server until a session is
actually required. Therefore, we need to enqueue the job after we are
sure that a session has been started.
