Bump mockito-core from 3.12.4 to 4.1.0

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.12.4 to 4.1.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.12.4...v4.1.0)

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

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

pom.xml

@@ -263,7 +263,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>3.12.4</version>
+      <version>4.1.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>

src/test/java/org/codehaus/mojo/versions/RequiredMavenVersionFinderTest.java

@@ -10,7 +10,7 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnitRunner;
 
 import java.util.ArrayList;