chore(deps): bump the testing group with 2 updates

Bumps the testing group with 2 updates: [org.mockito:mockito-core](https://github.com/mockito/mockito) and [org.robolectric:robolectric](https://github.com/robolectric/robolectric).


Updates `org.mockito:mockito-core` from 4.8.0 to 5.18.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v4.8.0...v5.18.0)

Updates `org.robolectric:robolectric` from 4.9 to 4.15.1
- [Release notes](https://github.com/robolectric/robolectric/releases)
- [Commits](robolectric/robolectric@robolectric-4.9...robolectric-4.15.1)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-version: 5.18.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: testing
- dependency-name: org.robolectric:robolectric
  dependency-version: 4.15.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: testing
...

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

Author: dependabot[bot]

app/build.gradle

@@ -75,8 +75,8 @@ dependencies {
         exclude group: 'com.google.code.findbugs'
     })
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.mockito:mockito-core:4.8.0'
-    testImplementation 'org.robolectric:robolectric:4.9'
+    testImplementation 'org.mockito:mockito-core:5.18.0'
+    testImplementation 'org.robolectric:robolectric:4.15.1'
     testImplementation 'androidx.test:core:1.5.0'
     testImplementation 'androidx.test.ext:junit:1.1.5'