java.lang.NoClassDefFoundError: Could not initialize class sample after adding dependency

[nesies]

test repo: https://github.com/nesies/camunda-test-assert-coverage-mockito

i added the mockito dependency:

    <version.camunda_mockito>7.20.0</version.camunda_mockito>
   ...
   <dependency>
      <groupId>org.camunda.community.mockito</groupId>
      <artifactId>camunda-platform-7-mockito</artifactId>
      <scope>test</scope>
      <version>${version.camunda_mockito}</version>
    </dependency>

when i run my tests (which are working without mockito):

NFO] Running sample.camunda.unittest.sampleTest
[ERROR] Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 0.269 s <<< FAILURE! - in sample.camunda.unittest.sampleTest
[ERROR] testSampleSuccess  Time elapsed: 0.005 s  <<< ERROR!
java.lang.ExceptionInInitializerError
        at sample.camunda.unittest.sampleTest.<clinit>(sampleTest.java:21)
Caused by: java.lang.NoClassDefFoundError: kotlin/enums/EnumEntriesKt
        at sample.camunda.unittest.sampleTest.<clinit>(sampleTest.java:21)
Caused by: java.lang.ClassNotFoundException: kotlin.enums.EnumEntriesKt
        at sample.camunda.unittest.sampleTest.<clinit>(sampleTest.java:21)

[ERROR] testSampleWithCallSuccess  Time elapsed: 0 s  <<< ERROR!
java.lang.NoClassDefFoundError: Could not initialize class sample.camunda.unittest.sampleTest
        at sample.camunda.unittest.sampleTest.<clinit>(sampleTest.java:21)

[INFO]
[INFO] Results:
[INFO]
[ERROR] Errors:
[ERROR]   sampleTest.testSampleSuccess » ExceptionInInitializer
[ERROR]   sampleTest.testSampleWithCallSuccess » NoClassDefFound Could not initialize cl...
[INFO]
[ERROR] Tests run: 2, Failures: 0, Errors: 2, Skipped: 0
```

the ligne 21 is:

@ExtendWith(ProcessEngineCoverageExtension.class)
public class sampleTest {
static ProcessEngineCoverageExtension extension = ProcessEngineCoverageExtension.builder().build(); <======
static public ProcessEngine processEngine;

@Test