[3.13] gh-137044: Support large limit values in getrlimit() and setrlimit() (GH-137338) (GH-137507)

* Return large limit values as positive integers instead of negative integers
  in resource.getrlimit().
* Accept large values and reject negative values (except RLIM_INFINITY)
  for limits in resource.setrlimit().
(cherry picked from commit baefaa6cba1d69efd2f930cdc56bca682c54b139)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>