Bump pychromecast from 13.0.7 to 13.0.8 (#936)

Bump pychromecast from 13.0.7 to 13.0.8 (#936)

* Bump pychromecast from 13.0.7 to 13.0.8

Bumps [pychromecast](https://github.com/balloob/pychromecast) from 13.0.7 to 13.0.8.
- [Release notes](https://github.com/balloob/pychromecast/releases)
- [Commits](https://github.com/balloob/pychromecast/compare/13.0.7...13.0.8)

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

Signed-off-by: dependabot[bot] <support@github.com>
* Update manifest.json

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcel van der Veldt <m.vanderveldt@outlook.com>