Bump livereload from 2.6.3 to 2.7.0 (#246)

Bumps [livereload](https://github.com/lepture/python-livereload) from 2.6.3 to 2.7.0.
- [Release notes](https://github.com/lepture/python-livereload/releases)
- [Changelog](https://github.com/lepture/python-livereload/blob/master/CHANGES.rst)
- [Commits](lepture/python-livereload@2.6.3...2.7.0)

---
updated-dependencies:
- dependency-name: livereload
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>