Merge pull request activeadmin#7146 from activeadmin/dependabot/bundler/docs/nokogiri-1.12.5

Bump nokogiri from 1.12.3 to 1.12.5 in /docs

Author: mergify[bot]

docs/Gemfile.lock

@@ -226,7 +226,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
-    nokogiri (1.12.3)
+    nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     octokit (4.21.0)