leap: update tests to v1.5.1 (#1730)
leap: update tests to v1.5.1 (#1730)

Fixes #1727
exercism/python,smalley/python,smalley/python,behrtam/xpython,exercism/python,exercism/xpython,jmluy/xpython,jmluy/xpython,N-Parsons/exercism-python,N-Parsons/exercism-python,exercism/xpython,behrtam/xpython