Bump org.mockito:mockito-core from 5.5.0 to 5.6.0 (#410)

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) 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
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

app/build.gradle

@@ -145,7 +145,7 @@ dependencies {
     testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
     testImplementation "org.junit.jupiter:junit-jupiter-params:$junitVersion"
     testImplementation "org.assertj:assertj-core:$assertJVersion"
-    testImplementation 'org.mockito:mockito-core:5.5.0'
+    testImplementation 'org.mockito:mockito-core:5.6.0'
     testImplementation 'com.squareup.okhttp3:mockwebserver:4.11.0'
     testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"