GitHub action improvement

[Net-Mist]

Hello !

I would like to propose some change to the github actions to use the services capabilities to start the clickhouse server instead of hacking the setup.cfg and the host network. I also updated the doc to reflect this change.

What do you think ?

Checklist:

• Add tests that demonstrate the correct behavior of the change. Tests should fail without the change.
• Add or update relevant docs, in the docs folder and in code.
• Ensure PR doesn't contain untouched code reformatting: spaces, etc.
• Run flake8 and fix issues.
• Run pytest no tests failed. See https://clickhouse-sqlalchemy.readthedocs.io/en/latest/development.html.

[coveralls]

coverage: 85.756%. remained the same when pulling d028c13 on Net-Mist:github_action into b19a31f on xzkostyan:master.

[xzkostyan]

I don't see docker-compose.yml in the diff.

If these changes will allow to run tests against ClickHouse:

• installed on local machine. I run tests on local machine without docker for more efficient debugging and speed.
• in docker on local machine;
• in CI/CD.

I'm ok with it.

[aronbierbaum]

@Net-Mist @xzkostyan I split this into two pull requests, added a compose.yaml file and can make sure everything is passing.

• Docker compose #295
• ci: update github action to use services #296