Log Message:
py-parso: update to 0.8.0.

0.8.0 (2020-08-05)
++++++++++++++++++

- Dropped Support for Python 2.7, 3.4, 3.5
- It's possible to use ``pathlib.Path`` objects now in the API
- The stubs are gone, we are now using annotations
- ``namedexpr_test`` nodes are now a proper class called ``NamedExpr``
- A lot of smaller refactorings