Update dependency org.webjars:stomp-websocket to v2.3.4

Author: renovate[bot]

spring-boot-with-open-liberty/pom.xml

@@ -72,7 +72,7 @@
         <dependency>
             <groupId>org.webjars</groupId>
             <artifactId>stomp-websocket</artifactId>
-            <version>2.3.3</version>
+            <version>2.3.4</version>
         </dependency>
         <dependency>
             <groupId>org.webjars</groupId>