0.10.12

Highlights

• Drop support for Python 3.9
• Update Python versions in testrp, testrunner, and testprovider Docker images
• Update geckodriver to 0.36.0 in Docker images
• Docker image improvements

What's Changed

• prepare for 0.10.12 release by @escattone in #110
• Image updates and improvements by @akatsoulas in #111
• update 0.10.12 release notes by @escattone in #112

Full Changelog: 0.10.11...0.10.12