Geo: Admin page should not Error 500 when cannot talk to secondaries because of SSL

Steps to reproduce:

1. Configure a Geo secondary with an untrusted SSL certificate
2. The admin page will just report "Something went wrong on our end" and the /status endpoint will have a 500 Error

We should also consider having the rake task attempt to curl the primaries/secondaries to verify the certs are configured properly.

ZD: https://gitlab.zendesk.com/agent/tickets/82535