Bump uri from 1.0.3 to 1.0.4 in /docs (#788)

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

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

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

Author: dependabot[bot]

docs/Gemfile.lock

@@ -267,7 +267,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
-    uri (1.0.3)
+    uri (1.0.4)
     webrick (1.9.1)
 
 PLATFORMS