fix: packages registry secret logic

chart/templates/secrets/imagepullsecret.yaml

 {{- /* Used for pulling images from custom registries.  One per namespace */ -}}
-{{- if .Values.registryCredentials -}}
+{{- if ( include "imagePullSecret" . ) }}
 {{- range $ns := compact (splitList " " (include "uniqueNamespaces" (merge (dict "default" true) .))) -}}
 apiVersion: v1
 kind: Secret