Bump uri from 1.0.3 to 1.0.4 in /docs

Bumps [uri](https://github.com/ruby/uri) from 1.0.3 to 1.0.4.
- [Release notes](https://github.com/ruby/uri/releases)
- [Commits](https://github.com/ruby/uri/compare/v1.0.3...v1.0.4)

---
updated-dependencies:
- dependency-name: uri
  dependency-version: 1.0.4
  dependency-type: indirect
...

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