feat: upgrade chart to 2.0.0 (#1268)

- upgrade jellyseerr to 2.3.0
- disable HPA as it's not documented and not useful
- migrate container image to ghcr.io registry

Signed-off-by: Ludovic Ortega <ludovic.ortega@adminafk.fr>

charts/jellyseerr-chart/templates/deployment.yaml

@@ -5,9 +5,7 @@ metadata:
   labels:
     {{- include "jellyseerr.labels" . | nindent 4 }}
 spec:
-  {{- if not .Values.autoscaling.enabled }}
   replicas: {{ .Values.replicaCount }}
-  {{- end }}
   strategy:
     type: {{ .Values.strategy.type }}
   selector: