[bug] secret yaml names mismatch

secret yaml names mismatch -
1. Gitops expects **ibm-entitled-registry-credentials-secret.yaml**
```
multi-tenancy-gitops-apps/apic/environments/single-cluster/config/kustomization.yaml:

- secrets/ibm-entitled-registry-credentials-secret.yaml
```
2. The scripts and instructions create the secret file in a different name as shown below **ibm-entitlement-key-secret.yaml**
```
grep ibm-entitlement-key-secret.yaml * -r

multi-tenancy-gitops-apps/apic/environments/single-cluster/config/secrets/ibm-entitlement-key-secret.sh:kubeseal -n tools --controller-name=${SEALED_SECRET_CONTOLLER_NAME} --controller-namespace=${SEALED_SECRET_NAMESPACE} -o yaml < delete-ibm-entitlement-key-secret.yaml > ibm-entitlement-key-secret.yaml
multi-tenancy-gitops-apps/apic/environments/single-cluster/config/secrets/ibm-entitlement-key-secret.sh:rm delete-ibm-entitlement-key-secret.yaml
multi-tenancy-gitops-apps/ace/environments/ci/secrets/ibm-entitlement-key-secret.sh: -o yaml > ibm-entitlement-key-secret.yaml
multi-tenancy-gitops-apps/ace/environments/base/secrets/ibm-entitlement-key-secret.sh: -o yaml > ibm-entitlement-key-secret.yaml
```
As a result, ArgoCD application `apic-config-prod` won't be created properly, instead, showing an error indicating the file `ibm-entitled-registry-credentials-secret.yaml` is not found.