Bump mockito-core from 3.0.0 to 3.3.0

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.0.0 to 3.3.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.0.0...v3.3.0)

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

Author: dependabot-preview[bot]

build.gradle

@@ -68,7 +68,7 @@ dependencies {
 
   testCompile group: 'junit', name: 'junit', version: '4.12'
   testCompile group: 'org.hamcrest', name: 'hamcrest-library', version: '2.1'
-  testCompile group: 'org.mockito', name: 'mockito-core', version: '3.0.0'
+  testCompile group: 'org.mockito', name: 'mockito-core', version: '3.3.0'
   testCompile group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.0'
 }