Bump mockito.version from 3.12.1 to 3.12.4

Bumps `mockito.version` from 3.12.1 to 3.12.4.

Updates `mockito-core` from 3.12.1 to 3.12.4
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.12.1...v3.12.4)

Updates `mockito-junit-jupiter` from 3.12.1 to 3.12.4
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.12.1...v3.12.4)

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

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

Author: dependabot[bot]

pom.xml

@@ -33,7 +33,7 @@
 
   <properties>
     <project.build.outputTimestamp>2020-01-20T18:52:37Z</project.build.outputTimestamp>
-    <mockito.version>3.12.1</mockito.version>
+    <mockito.version>3.12.4</mockito.version>
   </properties>
 
   <dependencies>