Reduce direct and transitive dependencies (Size of .hpi is 72Mib)

[jonesbusy]

The plugin package too much dependencies (transitive or direct) that should be replaced by api plugin

Also the size of the hpi is very huge (72 Mib)

• https://plugins.jenkins.io/okhttp-api/
• https://plugins.jenkins.io/kubernetes-client-api/

Seeing also #450 worries me because it are more dependencies that should be consumed from API plugin or core

[WARNING] Bundling transitive dependency generex-1.0.2.jar (via tekton-client)
[WARNING] Bundling transitive dependency logging-interceptor-3.14.9.jar (via tekton-client)
[INFO] Bundling direct dependency okhttp-3.14.9.jar
[INFO] Bundling direct dependency okio-1.17.6.jar
[WARNING] Bundling transitive dependency automaton-1.11-8.jar (via tekton-client)
[WARNING] Bundling transitive dependency knative-model-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-client-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-admissionregistration-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-apiextensions-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-apps-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-autoscaling-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-batch-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-certificates-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-common-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-coordination-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-core-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-discovery-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-events-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-extensions-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-flowcontrol-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-metrics-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-networking-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-node-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-policy-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-rbac-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-scheduling-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency kubernetes-model-storageclass-5.4.1.jar (via tekton-client)
[INFO] Bundling direct dependency tekton-client-5.4.1.jar
[WARNING] Bundling transitive dependency tekton-model-triggers-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency tekton-model-v1alpha1-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency tekton-model-v1beta1-5.4.1.jar (via tekton-client)
[WARNING] Bundling transitive dependency zjsonpatch-0.3.0.jar (via tekton-client)