fix manifest route presentation & test

Author: a18e

app/presenters/v3/app_manifest_presenters/route_properties_presenter.rb

@@ -10,7 +10,7 @@ def to_hash(route_mappings:, app:, **_)
                 protocol: route_mapping.protocol
               }
 
-              route_hash[:options] = route_mapping.route.options if route_mapping.route.options && route_mapping.route.options[:lb_algo]
+              route_hash[:options] = route_mapping.route.options if route_mapping.route.options && route_mapping.route.options['lb_algo']
 
               route_hash
             end

spec/unit/models/runtime/route_spec.rb

@@ -1049,8 +1049,8 @@ module VCAP::CloudController
     end
 
     describe 'Serialization' do
-      it { is_expected.to export_attributes :host, :domain_guid, :space_guid, :path, :service_instance_guid, :port }
-      it { is_expected.to import_attributes :host, :domain_guid, :space_guid, :app_guids, :path, :port }
+      it { is_expected.to export_attributes :host, :domain_guid, :space_guid, :path, :service_instance_guid, :port, :options }
+      it { is_expected.to import_attributes :host, :domain_guid, :space_guid, :app_guids, :path, :port, :options }
     end
 
     describe 'instance methods' do