postgresqlPackages.tsearch_extras: add platforms

pkgs/servers/sql/postgresql/ext/tsearch_extras.nix

@@ -23,6 +23,7 @@ stdenv.mkDerivation {
     description = "Provides a few PostgreSQL functions for a lower-level data full text search";
     homepage = https://github.com/zulip/tsearch_extras/;
     license = licenses.postgresql;
+    platforms = postgresql.meta.platforms;
     maintainers = with maintainers; [ DerTim1 ];
   };
 }