Ruby: Add change note

Author: hmac

ruby/ql/lib/change-notes/2023-03-13-rails-sinks.md

@@ -0,0 +1,6 @@
+---
+ category: minorAnalysis
+---
+* The Active Record query methods `reorder` and `count_by_sql` are now recognised as SQL executions.
+* Calls to `ActiveRecord::Connection#execute`, including those via subclasses, are now recognised as SQL executions.
+* Data flow through `ActionController::Parameters#require` is now tracked properly.