Async-hvac

What's Changed

* Update package for python 3.9+ by jamaalscarlett in https://github.com/jamaalscarlett/async-hvac/pull/1
* Run black and ruff formatters by jamaalscarlett in https://github.com/jamaalscarlett/async-hvac/pull/2


**Full Changelog**: https://github.com/jamaalscarlett/async-hvac/commits/0.7.0

Merge changes of version 0.6.1 of hvac (Python 2/3 client for HashiCorp Vault), see https://github.com/ianunruh/hvac
* see https://github.com/ianunruh/hvac/releases for change logs.

Merge changes of version 0.6.0 of hvac (Python 2/3 client for HashiCorp Vault), see https://github.com/ianunruh/hvac
* see https://github.com/ianunruh/hvac/releases for change logs.

BUG FIXES:

* Client with argument `verify=False` raises exception 12

Thanks to laerus for it lovely contribution.


0.5.x (June 2018)

First version based on the version 0.5.0 of hvac (Python 2/3 client for HashiCorp Vault), see https://github.com/ianunruh/hvac