Ruby: Add change note

Author: hmac

ruby/ql/lib/change-notes/2022-08-04-active-record-writes.md

@@ -0,0 +1,5 @@
+---
+category: minorAnalysis
+---
+* Calls to `ActiveRecord::Base.create` and `ActiveRecord::Base.update` are now
+  recognised as write accesses.