Bump nokogiri from 1.18.8 to 1.18.9 (#895)

Author: dependabot[bot]

Gemfile.lock

@@ -289,7 +289,7 @@ GEM
     netrc (0.11.0)
     nio4r (2.7.4)
     nkf (0.2.0)
-    nokogiri (1.18.8)
+    nokogiri (1.18.9)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     octokit (10.0.0)