fix: Upgrade CP4D to 4.8.4

[nastacio]

closes: #330

Description of changes:

• Update component version to 4.8.4
• Deletes (now) redundant customization of cpd route.

Output of argocd app list command or screenshot of the Argo CD Application synchronization window showing successful application of changes in this branch.

NAME                                  CLUSTER                         NAMESPACE         PROJECT               STATUS  HEALTH   SYNCPOLICY  CONDITIONS  REPO                                    PATH                                  TARGET
openshift-gitops/argo-app             https://kubernetes.default.svc  openshift-gitops  argocd-control-plane  Synced  Healthy  Auto-Prune  <none>      https://github.com/IBM/cloudpak-gitops  config/argocd                         330-cp4d-484
openshift-gitops/cp-shared-app        https://kubernetes.default.svc  ibm-cloudpaks     default               Synced  Healthy  Auto-Prune  <none>      https://github.com/IBM/cloudpak-gitops  config/argocd-cloudpaks/cp-shared     330-cp4d-484
openshift-gitops/cp-shared-operators  https://kubernetes.default.svc  ibm-cloudpaks     default               Synced  Healthy  Auto-Prune  <none>      https://github.com/IBM/cloudpak-gitops  config/cloudpaks/cp-shared/operators  330-cp4d-484
openshift-gitops/cp4d-app             https://kubernetes.default.svc  openshift-gitops  default               Synced  Healthy  Auto-Prune  <none>      https://github.com/IBM/cloudpak-gitops  config/argocd-cloudpaks/cp4d          330-cp4d-484
openshift-gitops/cp4d-platform        https://kubernetes.default.svc  cp4d              default               Synced  Healthy  Auto-Prune  <none>      https://github.com/IBM/cloudpak-gitops  config/cloudpaks/cp4d                 330-cp4d-484

Additionally, the cpd route came back with the trusted ingress cert:

[nastacio]

🎉 This PR is included in version 0.38.2 🎉

The release is available on GitHub release

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