build(deps): bump org.mockito:mockito-core from 5.14.2 to 5.15.2 (#306)

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 5.14.2 to 5.15.2.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.14.2...v5.15.2)

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ jackson = "2.18.2"
 jetbrainsAnnotation = "26.0.1"
 jakarta-ws-rs = "4.0.0"
 jupiter = "5.11.3"
-mockito = "5.14.2"
+mockito = "5.15.2"
 openapi-merger = "1.0.5"
 swagger = "2.2.22"
 swagger-parser = "2.1.24"