build(deps): bump uk.org.webcompere:system-stubs-jupiter (#189)

Bumps [uk.org.webcompere:system-stubs-jupiter](https://github.com/webcompere/system-stubs) from 2.1.3 to 2.1.6.
- [Release notes](https://github.com/webcompere/system-stubs/releases)
- [Changelog](https://github.com/webcompere/system-stubs/blob/main/History.md)
- [Commits](webcompere/system-stubs@system-stubs-parent-2.1.3...system-stubs-parent-2.1.6)

---
updated-dependencies:
- dependency-name: uk.org.webcompere:system-stubs-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -81,7 +81,7 @@
     <servlet-jsp-api.version>2.3.3</servlet-jsp-api.version>
     <vertx.version>4.5.1</vertx.version>
     <smallrye-mutiny-vertx-bindings.version>3.8.0</smallrye-mutiny-vertx-bindings.version>
-    <system-stubs-jupiter.version>2.1.3</system-stubs-jupiter.version>
+    <system-stubs-jupiter.version>2.1.6</system-stubs-jupiter.version>
     <awaitility.version>4.2.0</awaitility.version>
 
     <!-- Plugins versions -->