FIX: ignore malformed HTML for title extraction (#18040)

Certain HTML can be rejected by nokogumbo, specifically cases where there
are enormous amounts of attributes

This ensures that malformed HTML is simply skipped instead of leaking out
an exception and terminating downstream processes.

lib/retrieve_title.rb

@@ -18,8 +18,15 @@ module RetrieveTitle
     if html =~ /<title>/ && html !~ /<\/title>/
       return nil
     end
-    if doc = Nokogiri::HTML5(html, nil, encoding)
 
+    doc = nil
+    begin
+      doc = Nokogiri::HTML5(html, nil, encoding)
+    rescue ArgumentError
+      # invalid HTML (too many attributes) - ignore
+    end
+
+    if doc
       title = doc.at('title')&.inner_text
 
       # A horrible hack - YouTube uses `document.title` to populate the title