input: Write a python function to replace all elements in a list with a given value.
  assert replace_list_with_value([1, 2, 3, 4, 5], 9) == [9, 9, 9, 9, 9]
  assert replace_list_with_value([10, 20, 30, 40], 0) == [0, 0, 0, 0]
  assert replace_list_with_value([], 5) == []
output: def replace_list_with_value(lst, value):
      return [value] * len(lst)