[google_maps]: Bump org.mockito:mockito-core (#7099)

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 4.7.0 to 5.1.1.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v4.7.0...v5.1.1)

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

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

Author: dependabot[bot]

packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle

@@ -42,7 +42,7 @@ android {
         androidTestImplementation 'androidx.test:rules:1.4.0'
         androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
         testImplementation 'junit:junit:4.13.2'
-        testImplementation 'org.mockito:mockito-core:4.7.0'
+        testImplementation 'org.mockito:mockito-core:5.1.1'
         testImplementation 'androidx.test:core:1.2.0'
         testImplementation "org.robolectric:robolectric:4.3.1"
     }