Bump org.mockito:mockito-core from 4.11.0 to 5.13.0

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 4.11.0 to 5.13.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v4.11.0...v5.13.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

client/pom.xml

@@ -33,7 +33,7 @@
         <jetty.version>11.0.23</jetty.version>
         <tomcat.version>10.1.28</tomcat.version>
         <commons-io.version>2.16.1</commons-io.version>
-        <mockito.version>4.11.0</mockito.version>
+        <mockito.version>5.13.0</mockito.version>
         <hamcrest.version>3.0</hamcrest.version>
         <kerby.version>2.0.2</kerby.version>
     </properties>