Fix backup ApplicationSet environment variable for production (redhat…

…-appstudio#2763)

When backup ApplicationSet was added, we forgot to patch it to change
environment variable for production. Without this, it was expecting the
component to be in the following 2 locations which is wrong:

* components/backup/staging/stone-prd-m01
* components/backup/staging/stone-prd-rh01

RHTAPSRE-215

Signed-off-by: Hugo Ares <hares@redhat.com>

argo-cd-apps/overlays/production/kustomization.yaml

@@ -127,3 +127,8 @@ patches:
       kind: ApplicationSet
       version: v1alpha1
       name: release
+  - path: production-overlay-patch.yaml
+    target:
+      kind: ApplicationSet
+      version: v1alpha1
+      name: backup