python-aiocontextvars-0.2.2-bp155.2.11

- Revert last change. This package is for python < 3.7 only.

- Enable Python 3.8 builds as aiocontextvars is required for
  the opentelemetry-api package which builds on Python 3.8

- Change conditional for pythons definition for Leap as it need to
  be expanded by the serverside resolver, which does not have the
  full python-rpm-macros.

- Submit as python 3.6 only package for Tumbleweed's new python36
  flavor

- Change need version python-asyncio for tests, so it builds for
  Tumbleweed.

- initial version 0.2.2