Bump jettison from 1.3.4 to 1.5.4 in /examples-trunk/polling-parent

Bumps [jettison](https://github.com/jettison-json/jettison) from 1.3.4 to 1.5.4.
- [Release notes](https://github.com/jettison-json/jettison/releases)
- [Commits](https://github.com/jettison-json/jettison/compare/jettison-1.3.4...jettison-1.5.4)

---
updated-dependencies:
- dependency-name: org.codehaus.jettison:jettison
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/examples-trunk/polling-parent/pom.xml b/examples-trunk/polling-parent/pom.xml
index 8c419c1..b3c9e07 100644
--- a/examples-trunk/polling-parent/pom.xml
+++ b/examples-trunk/polling-parent/pom.xml
@@ -156,7 +156,7 @@
       <dependency>
         <groupId>org.codehaus.jettison</groupId>
         <artifactId>jettison</artifactId>
-        <version>1.3.4</version>
+        <version>1.5.4</version>
       </dependency>
     </dependencies>
   </dependencyManagement>