fix: space missing in CREATE TABLE code of PG table with SERIAL column

See https://www.heidisql.com/forum.php?t=45094

Author: ansgarbecker

source/dbconnection.pas

@@ -10703,8 +10703,9 @@ function TTableColumn.SQLCode(OverrideCollation: String=''; Parts: TColumnParts=
         Result := Result + ' ZEROFILL';
       if Compressed and FConnection.Parameters.IsMariaDB then
         Result := Result + ' /*!100301 COMPRESSED*/';
-      Result := Result + ' '; // Add space after each part
     end;
+
+    Result := Result + ' '; // Add space after each part
   end;
 
   if InParts(cpAllowNull) and (not IsVirtual) and (not FConnection.Parameters.IsAnyMSSQL) then begin