**Request** PyPy 7.3.2 got released with versions compatible with Python 2.7, 3.6 and 3.7 (new!): https://morepypy.blogspot.com/2020/09/pypy-732-triple-release-python-27-36.html I'd like to be able to specify `pypy` / `pypy3.6` and `pypy3.7` when using this action. Just like Travis CI allows us to do this.