Bump mockito-core from 2.23.4 to 2.24.0

Bumps [mockito-core](https://github.com/mockito/mockito) from 2.23.4 to 2.24.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v2.23.4...v2.24.0)

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

build.gradle

@@ -247,7 +247,7 @@ dependencies {
 
     // dependencies for local unit tests
     testImplementation 'junit:junit:4.12'
-    testImplementation 'org.mockito:mockito-core:2.23.4'
+    testImplementation 'org.mockito:mockito-core:2.24.0'
     // dependencies for instrumented tests
     // JUnit4 Rules
     androidTestImplementation 'androidx.test:rules:1.1.1'