chore(deps): bump org.mockito:mockito-core from 4.+ to 5.12.0

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 4.+ to 5.12.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/commits/v5.12.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-type: direct:production
...

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

build.gradle.kts

@@ -35,7 +35,7 @@ dependencies {
 	testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
 	testImplementation("org.xmlunit:xmlunit-core:2.9.+")
 	if (JavaVersion.current().isJava8) {
-		testImplementation("org.mockito:mockito-core:4.+")
+		testImplementation("org.mockito:mockito-core:5.+")
 		testImplementation("org.mockito:mockito-junit-jupiter:4.+")
 	} else {
 		testImplementation("org.mockito:mockito-core:5.+")