updated auth service url to v2

Author: sanzmauro

lib/splitclient-rb/split_config.rb

@@ -329,7 +329,7 @@ def self.default_streaming_service_url
     end
 
     def self.default_auth_service_url
-      'https://auth.split.io/api/auth'
+      'https://auth.split.io/api/v2/auth'
     end
 
     def self.default_auth_retry_back_off_base

lib/splitclient-rb/version.rb

@@ -1,3 +1,3 @@
 module SplitIoClient
-  VERSION = '7.3.3.pre.rc7'
+  VERSION = '7.3.3.pre.rc8'
 end