deps: update dependency jakarta.servlet:jakarta.servlet-api to v6

Author: renovate-bot

pom.xml

@@ -31,7 +31,7 @@
   <properties>
     <easymock.version>5.1.0</easymock.version>
     <logging.version>3.14.6</logging.version>
-    <jakarta.servlet.api.version>4.0.4</jakarta.servlet.api.version>  
+    <jakarta.servlet.api.version>6.1.0</jakarta.servlet.api.version>  
     <jetty.version>9.4.51.v20230217</jetty.version>
     <tomcat.version>9.0.76</tomcat.version>
     <undertow.version>2.2.24.Final</undertow.version>