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

Bumps [org.mockito:mockito-bom](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-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

log4j-parent/pom.xml

@@ -124,7 +124,7 @@
     <log4j2-custom-layout.version>1.1.0</log4j2-custom-layout.version>
     <log4j2-logstash-layout.version>0.18</log4j2-logstash-layout.version>
     <maven.version>3.9.9</maven.version>
-    <mockito.version>5.14.2</mockito.version>
+    <mockito.version>5.15.2</mockito.version>
     <nashorn.version>15.6</nashorn.version>
     <opentest4j.version>1.3.0</opentest4j.version>
     <org.eclipse.osgi.version>3.22.0</org.eclipse.osgi.version>