Bump Kubernetes-Client to v7.0

[manusa]

Description

Kubernetes Client 7.0.0 was just released: https://github.com/fabric8io/kubernetes-client/releases/tag/v7.0.0

Kubernetes Client 7.0.1 was just released: https://github.com/fabric8io/kubernetes-client/releases/tag/v7.0.1

The new version includes some breaking changes.
Among others, the removal of the (redundant) openshift-server-mock module which has a mirror extension in Quarkus (quarkus-test-openshift-client).
Since the adaptation of Quarkus to the new Kubernetes Client will require changes that will likely impact users in some way, we need to decide in which Quarkus version we'll be able to integrate the version upgrade.

Note that @metacosm has already some work in progress PR #42335
I can probably pick this up next week and have a PR ready for whenever the integration seems suitable.

/cc @metacosm

[quarkus-bot]

/cc @geoand (kubernetes,openshift), @iocanel (kubernetes,openshift)

[geoand]

cc @metacosm