order registration_history_entries by timestamp (thewca#10359)

app/models/registration.rb

@@ -16,7 +16,7 @@ class Registration < ApplicationRecord
   belongs_to :user, optional: true # A user may be deleted later. We only enforce validation directly on creation further down below.
   belongs_to :accepted_user, foreign_key: "accepted_by", class_name: "User", optional: true
   belongs_to :deleted_user, foreign_key: "deleted_by", class_name: "User", optional: true
-  has_many :registration_history_entries, dependent: :destroy
+  has_many :registration_history_entries, -> { order(:created_at) }, dependent: :destroy
   has_many :registration_competition_events
   has_many :registration_payments
   has_many :competition_events, through: :registration_competition_events