build(deps): bump org.mockito:mockito-core from 5.19.0 to 5.20.0 (#381)

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 5.19.0 to 5.20.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.19.0...v5.20.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-version: 5.20.0
  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

@@ -11,7 +11,7 @@ jackson = "2.20.0"
 jetbrainsAnnotation = "26.0.2-1"
 jakarta-ws-rs = "4.0.0"
 jupiter = "5.13.4"
-mockito = "5.19.0"
+mockito = "5.20.0"
 openapi-merger = "1.0.5"
 openapi-generator = "7.14.0"
 swagger = "2.2.26"