Update rails to 5.2.1.1

[maciej-szlosarczyk]

https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/

[maciej-szlosarczyk]

There's a CVE, but it should not affect us in rest-whois.

[vohmar]

webserver does not start after this update on staging

Error:
Web application could not be started
Error ID:
c691cc05
Details:
Web application could not be started by the Phusion Passenger application server.

Please read the Passenger log file (search for the Error ID) to find the details of the error.

You can also get a detailed report to appear directly on this page, but for security reasons it is only provided if Phusion Passenger is run with environment set to development and/or with the friendly error pages option set to on.

[maciej-szlosarczyk]

There was a configuration file missing for a Rails 5.2 feature we don't use, locally with Puma it works so I was not able to discover it before.

It should be fixed now.