build(deps): bump addressable from 2.7.0 to 2.8.0 in /docs

Bumps [addressable](https://github.com/sporkmonger/addressable) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/sporkmonger/addressable/releases)
- [Changelog](https://github.com/sporkmonger/addressable/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sporkmonger/addressable/compare/addressable-2.7.0...addressable-2.8.0

)

---
updated-dependencies:
- dependency-name: addressable
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: David Brown <david.brown@linaro.org>