Bump mockito.version from 5.5.0 to 5.6.0

Bumps `mockito.version` from 5.5.0 to 5.6.0.

Updates `org.mockito:mockito-core` from 5.5.0 to 5.6.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.5.0...v5.6.0)

Updates `org.mockito:mockito-junit-jupiter` from 5.5.0 to 5.6.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.5.0...v5.6.0)

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

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

pom.xml

@@ -65,7 +65,7 @@
         <maven-surefire-plugin.version>3.1.2</maven-surefire-plugin.version>
         <maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>
         <maven-compiler-plugin.version>3.11.0</maven-compiler-plugin.version>
-        <mockito.version>5.5.0</mockito.version>
+        <mockito.version>5.6.0</mockito.version>
         <hamcrest.version>2.2</hamcrest.version>
         <!-- Be aware: Spotbugs seems incompatible to JDK < 17 since 4.4.2 -->
         <spotbugs.plugin.version>4.7.3.6</spotbugs.plugin.version>