input: Write a python function to filter out people over a certain age from a list of names and ages.
  assert filter_over_age([['Name 0', 64], ['Name 1', 18], ['Name 2', 24]], 30) == [['Name 1', 18], ['Name 2', 24]]
  assert filter_over_age([['Name 0', 50], ['Name 1', 40], ['Name 2', 35], ['Name 3', 70]], 45) == [['Name 1', 40], ['Name 2', 35]]
  assert filter_over_age([['Name 0', 22], ['Name 1', 28], ['Name 2', 33]], 25) == [['Name 0', 22], ['Name 1', 28]]
output: def filter_over_age(people, age_limit):
      return [person for person in people if person[1] <= age_limit]