ensure woodpecker runs after postgres

hosts/profiles/woodpecker-server/default.nix

@@ -34,6 +34,7 @@
   };
 
   systemd.services.woodpecker-server = {
+    after = [ "postgresql.service" ];
     wantedBy = [ "multi-user.target" ];
     serviceConfig = {
       WorkingDirectory = "/var/lib/woodpecker";