Fix linter warning (#201)

Author: roncapat

zstd_image_transport/include/zstd_image_transport/zstd_publisher.hpp

@@ -66,7 +66,7 @@ class ZstdPublisher : public image_transport::SimplePublisherPlugin<CompressedIm
     rclcpp::Node * node,
     const std::string & base_topic,
     rclcpp::QoS custom_qos,
-    rclcpp::PublisherOptions options) override final;
+    rclcpp::PublisherOptions options) final;
 
   void publish(
     const sensor_msgs::msg::Image & message,