Avoid Mockito warning

### Current Behaviour

When running itests, we get the following warning

```
Mockito is currently self-attaching to enable the inline-mock-maker. This will no longer work in future releases of the JDK. Please add Mockito as an agent to your build what is described in Mockito's documentation: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#0.3
WARNING: A Java agent has been loaded dynamically (/.../.m2/repository/net/bytebuddy/byte-buddy-agent/1.15.11/byte-buddy-agent-1.15.11.jar)
WARNING: If a serviceability tool is in use, please run with -XX:+EnableDynamicAgentLoading to hide this warning
WARNING: If a serviceability tool is not in use, please run with -Djdk.instrument.traceUsage for more information
WARNING: Dynamic loading of agents will be disallowed by default in a future release
OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended

```

### Wanted Behaviour

No Warning

### Possible Workarounds

Start by inspecting the build configuration used when running itests and read the linked Mockito documentation about adding an agent. Confirm the configuration works on the relevant JDK and that running itests no longer emits the dynamic-agent and classpath-sharing warnings.

Written by the indexing model from the issue text.