unbreak pppoe ci job

modules/ppp/common.nix

@@ -78,6 +78,6 @@ let
     inherit dependencies;
   };
 in svc.secrets.subscriber.build {
-  watch = [ username password ];
+  watch = lib.filter (n: typeOf n=="lambda") [ username password ];
   inherit service;
 }

modules/ppp/default.nix

@@ -25,6 +25,7 @@ let
       inherit description;
     };
 in {
+  imports = [ ../secrets ];
   options = {
     system.service.pppoe = mkOption {
       type = liminix.lib.types.serviceDefn;