Bump nokogiri from 1.11.3 to 1.11.5 in /docs

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.11.3 to 1.11.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.11.3...v1.11.5)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/Gemfile.lock

@@ -207,17 +207,17 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.5.0)
+    mini_portile2 (2.5.1)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
-    nokogiri (1.11.3)
+    nokogiri (1.11.5)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
-    nokogiri (1.11.3-x64-mingw32)
+    nokogiri (1.11.5-x64-mingw32)
       racc (~> 1.4)
     octokit (4.20.0)
       faraday (>= 0.9)
@@ -258,6 +258,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.7)
+    unf_ext (0.0.7.7-x64-mingw32)
     unicode-display_width (1.7.0)
     wdm (0.1.1)
     webrick (1.7.0)