version.rb in potassium-5.2.1

- old
+ new

@@ -1,6 +1,8 @@
 module Potassium
-  VERSION = "5.2.0"
-  RUBY_VERSION = "2.5.1"
+  VERSION = "5.2.1"
+  RUBY_VERSION = "2.5.5"
   RAILS_VERSION = "~> 5.2.1"
-  RUBOCOP_VERSION = "~> 0.49.1"
+  RUBOCOP_VERSION = "~> 0.65.0"
+  POSTGRES_VERSION = "11.3"
+  MYSQL_VERSION = "5.7"
 end