Fix some uid/gid attributes to match the actual user/group name

nixos/modules/services/databases/4store-endpoint.nix

@@ -54,7 +54,7 @@ with lib;
 
     users.extraUsers = singleton
       { name = endpointUser;
-        uid = config.ids.uids.fourStoreEndpoint;
+        uid = config.ids.uids.fourstorehttp;
         description = "4Store SPARQL endpoint user";
 #        home = stateDir;
       };

nixos/modules/services/databases/4store.nix

@@ -45,7 +45,7 @@ with lib;
 
     users.extraUsers = singleton
       { name = fourStoreUser;
-        uid = config.ids.uids.fourStore;
+        uid = config.ids.uids.fourstore;
         description = "4Store database user";
         home = stateDir;
       };