Bump org.eclipse.jetty:jetty-http in /modules/flowable-dmn-rest (#3740)

Bumps [org.eclipse.jetty:jetty-http](https://github.com/eclipse/jetty.project) from 11.0.14 to 11.0.16.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-11.0.14...jetty-11.0.16)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-http
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

modules/flowable-dmn-rest/pom.xml

@@ -15,7 +15,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <jetty.version>11.0.14</jetty.version>
+        <jetty.version>11.0.16</jetty.version>
         <flowable.artifact>
             org.flowable.dmn.rest.service
         </flowable.artifact>