forgejo: set the correct hostname in the route

Signed-off-by: David Kirwan <davidkirwanirl@gmail.com>

roles/openshift-apps/forgejo/templates/values.yaml.j2

@@ -197,7 +197,7 @@ ingress:
 route:
   enabled: true
   annotations: {}
-  host: "forgejo.apps.ocp.stg.fedoraproject.org"
+  host: "{{ (env == 'production') | ternary(forgejo_hostname, forgejo_stg_hostname) }}"
   wildcardPolicy:
   tls:
     termination: edge