Log Message:
py-yarl: update to 1.7.0.

1.7.0 (2021-10-06)
==================

Features
--------

- Add `__bytes__()` magic method so that `bytes(url)` will work
  and use optimal ASCII encoding.
- Started shipping platform-specific arm64 wheels for Apple Silicon.
- Started shipping platform-specific wheels with the ``musl`` tag
  targeting typical Alpine Linux runtimes.
- Added support for Python 3.10.