Update nokogiri to version 1.13.4 (#618)

Co-authored-by: depfu[bot] <23717796+depfu[bot]@users.noreply.github.com>

Author: depfu[bot]

Gemfile.lock

@@ -71,7 +71,7 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.8)
-    nokogiri (1.13.3)
+    nokogiri (1.13.4)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     open_uri_redirections (0.2.1)