Problem description
When ProcessEngineRule is used in a parameterized JUnit test, the name of the bpmn file to be deployed is not detected correctly.

Context:
1) It is possible to annotate a testmethod with @Deployment. If the annotation is used without a parameter, the filename of the bpmn file to be deployed is determined based on the name of the Package, Class and Method. The name of the method is determined using org.junit.runner.Description.getMethodName()
=> In case of a parameterized JUnit test, getMethodName() returns the name of the method postfixed with the id of the run eg testSomething[1] ...

2) Note that this is a regression (worked in Camunda <= 7.1) which was introduced with the upgrade of JUnit and the fact that ProcessEngineRule now extends TestWatcher instead of the deprecated TestWatchman class.

Expected behavior:
Parameterized JUnittests work