Flaky test `PerResourcePollingEventSourceTest.getsValueFromCacheOrSupplier`

[csviri]

[ERROR] Failures:
[ERROR]   PerResourcePollingEventSourceTest.getsValueFromCacheOrSupplier:97
eventHandler.handleEvent(<any>);
Never wanted here:
-> at io.javaoperatorsdk.operator.processing.event.source.polling.PerResourcePollingEventSourceTest.getsValueFromCacheOrSupplier(PerResourcePollingEventSourceTest.java:97)
But invoked here:
-> at io.javaoperatorsdk.operator.processing.event.ExternalResourceCachingEventSource.handleEvent(ExternalResourceCachingEventSource.java:35) with arguments: [Event{relatedCustomResource=ResourceID{name='68677999-4079-4129-9b34-79e8b5e58fef', namespace='test'}}]
-> at io.javaoperatorsdk.operator.processing.event.ExternalResourceCachingEventSource.handleDelete(ExternalResourceCachingEventSource.java:24) with arguments: [Event{relatedCustomResource=ResourceID{name='68677999-4079-4129-9b34-79e8b5e58fef', namespace='test'}}]
-> at io.javaoperatorsdk.operator.processing.event.ExternalResourceCachingEventSource.handleEvent(ExternalResourceCachingEventSource.java:35) with arguments: [Event{relatedCustomResource=ResourceID{name='68677999-4079-4129-9b34-79e8b5e58fef', namespace='test'}}]