Bump uk.org.webcompere:system-stubs-core from 2.0.3 to 2.1.7 (#264)

* Bump uk.org.webcompere:system-stubs-core from 2.0.3 to 2.1.7

Bumps [uk.org.webcompere:system-stubs-core](https://github.com/webcompere/system-stubs) from 2.0.3 to 2.1.7.
- [Release notes](https://github.com/webcompere/system-stubs/releases)
- [Changelog](https://github.com/webcompere/system-stubs/blob/main/History.md)
- [Commits](https://github.com/webcompere/system-stubs/compare/system-stubs-parent-2.0.3...system-stubs-parent-2.1.7)

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

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

* Amend version update for test dependency

Signed-off-by: Max Lambrecht <maxlambrecht@gmail.com>

---------

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

build.gradle

@@ -117,7 +117,7 @@ subprojects {
         if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
             testImplementation group: 'uk.org.webcompere', name: 'system-stubs-core', version: '2.0.3' // Last version supporting Java 8
         } else {
-            testImplementation group: 'uk.org.webcompere', name: 'system-stubs-core', version: '2.1.6'
+            testImplementation group: 'uk.org.webcompere', name: 'system-stubs-core', version: '2.1.7'
         }
 
         // Project Lombok dependency