postgres: fix double cfg on pg_stat_statements install

Author: ahuston-0

modules/postgres.nix

@@ -260,7 +260,7 @@ in
 
             # install/update pg_stat_statements extension in all databases
             # based on https://git.catgirl.cloud/999eagle/dotfiles-nix/-/blob/main/modules/system/server/postgres/default.nix#L294-302
-            (lib.mkIf (cfg.enableAllPreloadedLibraries || cfg.cfg.configurePgStatStatements) (lib.concatStrings (map (db:
+            (lib.mkIf (cfg.enableAllPreloadedLibraries || cfg.configurePgStatStatements) (lib.concatStrings (map (db:
               (lib.concatMapStringsSep "\n" (ext: /* bash */ ''
                 $PSQL -tAd "${db}" -c "CREATE EXTENSION IF NOT EXISTS ${ext}"
                 $PSQL -tAd "${db}" -c "ALTER EXTENSION ${ext} UPDATE"