skip sending logs as they are rejected by upstream

nixosConfigurations/muede-lpt2/constellation-swarm.nix

@@ -48,6 +48,10 @@ in
             domain = "pr1ma.darkest.space";
           };
         };
+        attic = {
+          #cache = "grid";
+          #domain = "preem-bincache.trollhive.monster";
+        };
       };
       gateway = {
         localHostsEntry = true;
@@ -75,6 +79,7 @@ in
         swarm-otel.upstream = {
           endpoint = "https://exponentials.vibec0re.mov/otel";
           headersCredential = otelCredential;
+          signals = [ "metrics" ];
         };
       };
     };