Bump org.mockito:mockito-core from 5.15.2 to 5.16.0

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 5.15.2 to 5.16.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.15.2...v5.16.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -78,7 +78,7 @@ dependencies {
     implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.12.0'
 
     testImplementation project.deps.gocdPluginApi
-    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.15.2'
+    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.16.0'
     testImplementation group: 'org.hamcrest', name: 'hamcrest', version: '3.0'
     testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.3'
     testImplementation group: 'org.jsoup', name: 'jsoup', version: '1.18.3'