chore(deps-dev): bump nokogiri from 1.15.4 to 1.16.4 in /docs (#4221)

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.15.4 to 1.16.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.15.4...v1.16.4)

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

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

docs/Gemfile.lock

@@ -211,13 +211,13 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.8.4)
+    mini_portile2 (2.8.6)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.19.0)
-    nokogiri (1.15.4)
+    nokogiri (1.16.4)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     octokit (4.25.1)
@@ -226,7 +226,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.7)
-    racc (1.7.1)
+    racc (1.7.3)
     rake (13.1.0)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)