bracket-push: update tests to v1.5.0 (#1609)
bracket-push: update tests to v1.5.0 (#1609)

* #1583 bracket-push test suite updated to v1.5.0

* canonical data version updated in test suite

exercism/xpython,N-Parsons/exercism-python,smalley/python,N-Parsons/exercism-python,jmluy/xpython,behrtam/xpython,jmluy/xpython,exercism/xpython,exercism/python,exercism/python,smalley/python,behrtam/xpython