build(deps): bump mockito from 5.12.0 to 5.19.0

Bumps `mockito` from 5.12.0 to 5.19.0.

Updates `org.mockito:mockito-core` from 5.12.0 to 5.19.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.12.0...v5.19.0)

Updates `org.mockito:mockito-junit-jupiter` from 5.12.0 to 5.19.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.12.0...v5.19.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-version: 5.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.mockito:mockito-junit-jupiter
  dependency-version: 5.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -23,7 +23,7 @@ kotlin = "2.2.0"
 # set in <root>/settings.gradle.kts
 kotlinCoroutines = "1.10.1"
 lsp4j = "0.24.0"
-mockito = "5.12.0"
+mockito = "5.19.0"
 mockitoKotlin = "5.4.1-SNAPSHOT"
 mockk = "1.13.17"
 nimbus-jose-jwt = "9.40"