switch to downstream (registry.redhat.io) images for PaC and chains

- Revert "Merge pull request #639 from Roming22/rhtap-872"; This reverts commit 01d8e1e, reversing changes made to 1147039.
- But also switch from patch to use of kustomization 'images'

Author: gabemontero

operator/gitops/argocd/pipeline-service/pipelines-as-code/kustomization.yaml

@@ -8,6 +8,17 @@ resources:
   - allow-argocd.yaml
   - https://github.com/openshift-pipelines/pipelines-as-code/releases/download/v0.16.0/release.yaml
 
+images:
+  - name: ghcr.io/openshift-pipelines/pipelines-as-code-controller:v0.16.0
+    newName: registry.redhat.io/openshift-pipelines/pipelines-pipelines-as-code-rhel8
+    newTag: v1.10.2-1
+  - name: ghcr.io/openshift-pipelines/pipelines-as-code-watcher:v0.16.0
+    newName: registry.redhat.io/openshift-pipelines/pipelines-pipelines-as-code-rhel8
+    newTag: v1.10.2-1
+  - name: ghcr.io/openshift-pipelines/pipelines-as-code-webhook:v0.16.0
+    newName: registry.redhat.io/openshift-pipelines/pipelines-pipelines-as-code-rhel8
+    newTag: v1.10.2-1
+
 patchesStrategicMerge:
   - disable-pipelines-as-code-webhook.yaml
 

operator/gitops/argocd/pipeline-service/tekton-chains/kustomization.yaml

@@ -13,6 +13,11 @@ resources:
   - chains-secrets-config.yaml
   - public-key.yaml
 
+images:
+  - name: gcr.io/tekton-releases/github.com/tektoncd/chains/cmd/controller:v0.14.0
+    newName: registry.redhat.io/openshift-pipelines/pipelines-chains-controller-rhel8
+    newTag: v1.10.2-1
+
 patches:
   # allow openshift-gitops to manage tekton-chains
   - target: