chore(deps): bump audio_service from 0.18.4 to 0.18.7

Bumps [audio_service](https://github.com/ryanheise/audio_service) from 0.18.4 to 0.18.7.
- [Release notes](https://github.com/ryanheise/audio_service/releases)
- [Commits](https://github.com/ryanheise/audio_service/compare/audio_service-v0.18.4...audio_service-v0.18.7)

---
updated-dependencies:
- dependency-name: audio_service
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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