Fix certain IPs not being recognized as proxies.

Fix certain IPs (namely Digital Ocean IPs) no longer being recognized as
proxy IPs by the Ipregistry.co API. Caused by some sudden change in the
API.

app/logical/ip_lookup.rb

@@ -49,6 +49,7 @@ class IpLookup
 
   def is_proxy?
     return true if ip_addr.is_tor?
+    return true if response.dig(:connection, :type) == "hosting"
     response[:security].present? && response[:security].values.any?
   end