Merge pull request home-assistant#57455 from home-assistant/rc

Merge pull request home-assistant#57355 from home-assistant/rc

Merge pull request home-assistant#57294 from home-assistant/rc

Merge pull request home-assistant#57179 from home-assistant/rc

Bumped version to 2021.10.0b9

Bumped version to 2021.10.0b8

Bumped version to 2021.10.0b7

Bumped version to 2021.10.0b6

[ci skip] Translation update

Bumped version to 2021.10.0b4