Merge pull request #250 from yoshifujiT/fix-error-message-option-name

Fix the option name on the error message

Author: tonybaroneee

lib/fastlane/plugin/firebase_app_distribution/actions/firebase_app_distribution_action.rb

@@ -187,7 +187,7 @@ def self.available_options
                                        default_value_dynamic: true,
                                        optional: true,
                                        verify_block: proc do |value|
-                                         UI.user_error!("firebase_app_distribution: '#{value}' is not a valid value for android_artifact_path. Should be 'APK' or 'AAB'") unless ['APK', 'AAB'].include?(value)
+                                         UI.user_error!("firebase_app_distribution: '#{value}' is not a valid value for android_artifact_type. Should be 'APK' or 'AAB'") unless ['APK', 'AAB'].include?(value)
                                        end),
           FastlaneCore::ConfigItem.new(key: :app,
                                        env_name: "FIREBASEAPPDISTRO_APP",