devel/py-hvac: update to 0.10.7

• Support for database secrets static roles
• Expanded + updated Approle Auth method Docs
• Replaced Travis CI w/ GitHub actions

Changelog: https://github.com/hvac/hvac/releases/tag/v0.10.7

PR: 253170
Submitted by: Alessandro Sagratini <ale_sagra@hotmail.com> (maintainer)
Approved by: arrowd, tcberner (mentors, implicit)