configuration.rb in bckbn-3.0.0

- old
+ new

@@ -5,10 +5,10 @@
   CONFIG_OPTIONS = %i[
     access_token
     api_version
     api_base
     log_level
-    merchant_id
+    worldpay_merchant_id
     source_ip_address
     idempotency_key
   ].freeze
 
   Configuration = Struct.new(*CONFIG_OPTIONS, keyword_init: true) do