Log Message:
py-aiohttp: updated to 3.6.1

3.6.1:

Features
- Compatibility with Python 3.8.

Bugfixes
- correct some exception string format
- Emit a warning when ``ssl.OP_NO_COMPRESSION`` is
  unavailable because the runtime is built against
  an outdated OpenSSL.
- Update multidict requirement to >= 4.5

Improved Documentation
- Provide pytest-aiohttp namespace for pytest fixtures in docs.