[B] Fix Lockbox key generation in CI tests

Author: timfrazee

api/config/initializers/25_lockbox.rb

@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
-secret_key_base = Rails.application.secret_key_base
-
-secret_key_base = secret_key_base.presence || Lockbox.generate_key if Rails.env.test?
+secret_key_base = Rails.env.test? ? Lockbox.generate_key : Rails.application.secret_key_base
 
 # Consistently ensure that it's a 64-character hexadecimal key
 enforced_master_key = secret_key_base.gsub(/[^a-zA-Z0-9]+/, "")[/\A([a-zA-Z0-9]{1,64})/, 1].rjust(64, "0")