chore(deps): update dependency nokogiri to v1.18.6

Author: renovatebot

Gemfile.lock

@@ -239,10 +239,10 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.18.4)
+    nokogiri (1.18.6)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.4-x86_64-linux-gnu)
+    nokogiri (1.18.6-x86_64-linux-gnu)
       racc (~> 1.4)
     opentelemetry-api (1.5.0)
     opentelemetry-common (0.22.0)