Bump jetty-server in /12g/JavaExample/maven

Bumps [jetty-server](https://github.com/eclipse/jetty.project) from 9.4.41 to 9.4.51.v20230217. - [Release notes](https://github.com/eclipse/jetty.project/releases) - [Commits](https://github.com/eclipse/jetty.project/commits/jetty-9.4.51.v20230217) --- updated-dependencies: - dependency-name: org.eclipse.jetty:jetty-server dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

12g/JavaExample/maven/pom.xml

@@ -7,7 +7,7 @@
 <name>MovieTicketing Soda4Java</name>
 <properties>
 <!-- Adapt this to a version found on http://central.maven.org/maven2/org/eclipse/jetty/jetty-maven-plugin/ -->
-<jettyVersion>9.4.41</jettyVersion>
+<jettyVersion>9.4.51.v20230217</jettyVersion>
 <jerseyVersion>2.25</jerseyVersion>
 </properties>
 <dependencies>