* Fix tox lint command
- Move apt-get install command to github actions to run on an ubuntu
system only. This keeps tox.ini cross-platform and enabled to run on
non-ubuntu systems locally.
- Add `-y` flag to apt-get install command so it does not wait for
configuration on CI.
* Downgrade pylint to 2.9.x
* Add pip cache to github actions cache
Move tox and other configuration files to root folder. Add eachdist to make it
easier to handle operations with different packages.
The eachdist is taken from opentelemetry but slighty modified to avoid ignoring
a given path.
