Bump mockito-core from 2.27.0 to 2.28.2

Bumps [mockito-core](https://github.com/mockito/mockito) from 2.27.0 to 2.28.2.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v2.27.0...v2.28.2)

pom.xml

@@ -224,7 +224,7 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>2.27.0</version>
+            <version>2.28.2</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->