When creating a KogitoRuntime with a reference to an external image, Kogito creates an ImageStream pointing to that image. If you update the Runtime with a new tag, Kogito does not update the Image Stream.

Steps to reproduce:

`kogito deploy-service my-service --image=quay.io/id/my-image:1.0`

Validate the ImageStream points to the correct image.

Update the KogitoRuntime with quay.io/id/my-image:2.0

Validate the ImageStream. It will still be pointed to 1.0 but Kogito should update it to 2.0.