Bump org.mockito:mockito-core from 5.7.0 to 5.8.0

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 5.7.0 to 5.8.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.7.0...v5.8.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -100,7 +100,7 @@ dependencies {
   testImplementation project.deps.gocdPluginApi
   testImplementation group: 'uk.org.webcompere', name: 'system-stubs-jupiter', version: '2.1.5'
   testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.24.2'
-  testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.7.0'
+  testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.8.0'
   testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.1'
   testImplementation group: 'org.jsoup', name: 'jsoup', version: '1.16.2'
 }