Add more k8s labels to instances managed by container-jfr-operator

For example, the RH Jaeger operator has the following labels on it's Jaeger instances:

```
app=jaeger
app.kubernetes.io/component=all-in-one
app.kubernetes.io/instance=jaeger-all-in-one-inmemory
app.kubernetes.io/managed-by=jaeger-operator
app.kubernetes.io/name=jaeger-all-in-one-inmemory
app.kubernetes.io/part-of=jaeger
pod-template-hash=856b547bf
```

I think the app.kubernetes.io labels should be added to the container-jfr instances.