add: enable SMTP for grafana

helm.tf

@@ -43,6 +43,12 @@ resource "helm_release" "this" {
           org_role     = "Viewer"
           hide_version = true
         }
+        "smtp" = {
+          enabled   = true
+          host      = "smtp.lawndale.:25"
+          from      = "noreply@grafana.thomasklein.me"
+          from_name = "Grafana"
+        }
       }
     }),