Fix doctest bug in bubble_sort_recursive - incorrect function call

Fixed bug in bubble_sort_recursive docstring where the doctest was calling bubble_sort_iterative([]) instead of bubble_sort_recursive([]). This was a copy-paste error that would cause the doctest to pass even if bubble_sort_recursive had issues with empty lists.

Change:
- Line 71: Changed '>>> bubble_sort_iterative([])' to '>>> bubble_sort_recursive([])'

This ensures the doctest properly validates the recursive implementation.

Author: MathewAddala

sorts/bubble_sort.py

@@ -63,7 +63,7 @@ def bubble_sort_recursive(collection: list[Any]) -> list[Any]:
     Examples:
     >>> bubble_sort_recursive([0, 5, 2, 3, 2])
     [0, 2, 2, 3, 5]
-    >>> bubble_sort_iterative([])
+    >>> bubble_sort_recursive([])
     []
     >>> bubble_sort_recursive([-2, -45, -5])
     [-45, -5, -2]