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/Chart.yaml

@@ -3,8 +3,8 @@ kubeVersion: ">=1.23.0-0"
 name: jellyseerr-chart
 description: Jellyseerr helm chart for Kubernetes
 type: application
-version: 1.3.0
-appVersion: "2.2.3"
+version: 2.0.0
+appVersion: "2.3.0"
 maintainers:
   - name: Jellyseerr
     url: https://github.com/Fallenbagel/jellyseerr