audio_common: 0.2.7-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `audio_common` to `0.2.7-0`:

- upstream repository: https://github.com/ros-drivers/audio_common.git
- release repository: https://github.com/ros-gbp/audio_common-release.git
- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.11`
- previous version for package: `0.2.6-0`