9.0.0

What's Changed

• Bump version to 9.0.0 (#420) @ggravlingen
• Add attributes for the AirPurifier (#419) @ggravlingen
• Fix type hints for DeviceInfo class (#418) @ggravlingen
• Add typing of AirPurifier class (#417) @ggravlingen
• Bump black from 21.12b0 to 22.1.0 (#415) @dependabot
• Bump coverage from 6.2 to 6.3 (#416) @dependabot
• Add typing for DeviceInfo class (#413) @ggravlingen
• Drop support for Python 3.7, cleanup Dockerfiles (#414) @ggravlingen
• Fix observation err_callback typing (#412) @MartinHjelmare
• Remove vscode settings from git (#411) @MartinHjelmare
• Bump pre-commit from 2.16.0 to 2.17.0 (#409) @dependabot
• Bump pytest-timeout from 2.0.2 to 2.1.0 (#410) @dependabot
• Bump flake8-comprehensions from 3.7.0 to 3.8.0 (#407) @dependabot
• Bump mypy from 0.930 to 0.931 (#405) @dependabot