What's Changed
* Adjust black target version to 3.9 (553) bdraco
* Small cleanups to connection code (554) bdraco
Dependencies
<details>
<summary>7 changes</summary>
* Bump actions/checkout from 3 to 4 (534) dependabot
* Bump black from 23.7.0 to 23.9.1 (546) dependabot
* Bump docker/login-action from 2.2.0 to 3.0.0 (549) dependabot
* Bump docker/setup-qemu-action from 2.2.0 to 3.0.0 (548) dependabot
* Bump actions/cache from 3.3.1 to 3.3.2 (542) dependabot
* Bump docker/build-push-action from 4.1.1 to 5.0.0 (550) dependabot
* Bump types-protobuf from 4.24.0.1 to 4.24.0.2 (552) dependabot
</details>