Bump mockito-core from 4.3.1 to 4.4.0

Bumps [mockito-core](https://github.com/mockito/mockito) from 4.3.1 to 4.4.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v4.3.1...v4.4.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -47,7 +47,7 @@ dependencies {
     compile group: 'org.codehaus.groovy', name: 'groovy-all', version:'3.0.10'
 
     testCompile group: 'junit', name: 'junit', version:'4.13.2'
-    testCompile group: 'org.mockito', name: 'mockito-core', version:'4.3.1'
+    testCompile group: 'org.mockito', name: 'mockito-core', version:'4.4.0'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
 }
 compileKotlin {