ring-auth-cli hangs and never returns a token
# Bug Report

### Describe the Bug
ring-auth-cli hangs after I enter email and password. It never returns a token.
I have no network issues, no trouble pinging ring.com from the host machine, and no trouble logging in to ring.com from the host machine, before or after trying ring-auth-cli.

This is what I see in my terminal:
```
admin@boomshack ~ % ring-auth-cli
This CLI will provide you with a refresh token which you can use to configure ring-client-api and homebridge-ring.
Email: paulcaplin@me.com
Password: xxxxxx

<hangs forever>
```

### To Reproduce
Check that nest.com is fully accessible from host.
Enter ring-auth-cli followed by email and password in terminal 

### Expected behavior
Receive response with refresh token

### Screenshots/Logs
Receive nothing, process hangs indefinitely

### Additional context
This is after a rebuild of my Homebridge server. I previously had no problems.

### Homebridge Ring Config
Ring config not relevant as can't acquire token. This is a problem with ring-auth-cli, not the plugin.

### Environment
 - OS: MacOS 11.2.1
 - Node.js: v14.15.5
 - NPM: v6.14.11
 - homebridge-ring: v9.15.3
 - homebridge: v1.3.1
 - hoobs: N/A
