chore(deps): Bump the mockito group

Bumps the mockito group in /packages/amplify_datastore/android with 1 update: [org.mockito:mockito-core](https://github.com/mockito/mockito).

- [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-group: mockito
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/amplify_datastore/android/build.gradle

@@ -80,7 +80,7 @@ dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.1'
 
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.mockito:mockito-core:5.5.0'
+    testImplementation 'org.mockito:mockito-core:5.6.0'
     testImplementation 'org.mockito:mockito-inline:5.2.0'
     testImplementation 'androidx.test:core:1.5.0'
     testImplementation 'com.google.code.gson:gson:2.10.1'