feat: remove jfrog container registry

its not used and never really installed correctly. going to change to
artifact-keeper which promises to have the same capabilities and is open
source.

apps/base/jfrog/kustomization.yaml

@@ -1,6 +0,0 @@
----
-apiVersion: kustomize.config.k8s.io/v1beta1
-kind: Kustomization
-
-resources:
-  - namespace.yaml

apps/base/jfrog/namespace.yaml

@@ -1,5 +0,0 @@
----
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: jfrog