Bump org.mockito:mockito-core from 5.14.2 to 5.15.2

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]>

build.gradle

@@ -37,7 +37,7 @@ dependencies {
     runtimeOnly 'org.jetbrains.kotlin:kotlin-reflect:2.1.0'
     runtimeOnly 'org.springframework.boot:spring-boot-devtools:3.1.4'
 
-    testImplementation 'org.mockito:mockito-core:5.14.2'
+    testImplementation 'org.mockito:mockito-core:5.15.2'
     testImplementation 'org.jetbrains.kotlin:kotlin-test'
     testImplementation 'org.assertj:assertj-core:3.27.0'
     testImplementation 'org.springframework.boot:spring-boot-starter-test:3.1.4'