build(deps): bump rake from 13.0.6 to 13.2.1 in /docs/v3 (#3754)

Bumps [rake](https://github.com/ruby/rake) from 13.0.6 to 13.2.1.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.0.6...v13.2.1)

---
updated-dependencies:
- dependency-name: rake
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

docs/v3/Gemfile.lock

@@ -120,7 +120,7 @@ GEM
     rack (2.2.9)
     rack-livereload (0.3.17)
       rack
-    rake (13.0.6)
+    rake (13.2.1)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)