Update to use correct syntax from Appsignal

Author: HNKhoi2410

lib/idempotency.rb

@@ -168,7 +168,7 @@ def with_apm_instrumentation(name, action, &block)
 
     # Wrap with AppSignal if enabled (outermost layer)
     if config.observability.appsignal_enabled && defined?(Appsignal)
-      Appsignal.instrument(name, action: action) do
+      Appsignal.instrument(name, action) do
         instrumented_block.call
       rescue StandardError => e
         Appsignal.set_error(e)