input: Write a function to sort a list of strings based on their length and return the sorted list. The function should take a list of strings as input and use the `sort` method with the `len` function as the key.
  assert sort_strings_by_length(["Hello","World!","Good","Morning"]) == ["Good","Hello","World!","Morning"]
  assert sort_strings_by_length(["I","love","coding","python"]) == ["I","love","python","coding"]
  assert sort_strings_by_length(["A"]) == ["A"]
  assert sort_strings_by_length([]) == []
  assert sort_strings_by_length(["abcde","a","abcd"]) == ["a","abcd","abcde"]
output: def sort_strings_by_length(strings):
      strings.sort(key=len)
      return strings