Added the doctest mentioned in the issue

Author: XenoBytesX

dynamic_programming/longest_increasing_subsequence.py

@@ -24,6 +24,8 @@ def longest_subsequence(array: list[int]) -> list[int]:  # This function is recu
     [10, 22, 33, 41, 60, 80]
     >>> longest_subsequence([4, 8, 7, 5, 1, 12, 2, 3, 9])
     [1, 2, 3, 9]
+    >>> longest_subsequence([28, 26, 12, 23, 35, 39])
+    [12, 23, 35, 39]
     >>> longest_subsequence([9, 8, 7, 6, 5, 7])
     [5, 7]
     >>> longest_subsequence([1, 1, 1])