Update nokogiri to version 1.18.7

Author: depfu[bot]

Gemfile.lock

@@ -18,10 +18,10 @@ GEM
     mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.7.4)
-    nokogiri (1.18.6)
+    nokogiri (1.18.7)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.6-x86_64-linux-gnu)
+    nokogiri (1.18.7-x86_64-linux-gnu)
       racc (~> 1.4)
     opentelemetry-api (1.5.0)
     opentelemetry-common (0.22.0)