Bump uk.org.webcompere:system-stubs-jupiter from 2.1.7 to 2.1.8 (#257)

Bumps [uk.org.webcompere:system-stubs-jupiter](https://github.com/webcompere/system-stubs) from 2.1.7 to 2.1.8.
- [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-2.1.7...system-stubs-parent-2.1.8)

---
updated-dependencies:
- dependency-name: uk.org.webcompere:system-stubs-jupiter
  dependency-version: 2.1.8
  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>

Author: dependabot[bot]

cf-java-logging-support-servlet-dynlog-jwt/pom.xml

@@ -73,7 +73,7 @@
         <dependency>
             <groupId>uk.org.webcompere</groupId>
             <artifactId>system-stubs-jupiter</artifactId>
-            <version>2.1.7</version>
+            <version>2.1.8</version>
             <scope>test</scope>
         </dependency>
     </dependencies>