[DRE-maint] Bug#1050581: ruby-html-proofer: broken by ruby-nokogiri 1.15.4

[Lucas Nussbaum]

Source: ruby-html-proofer
Version: 3.19.2-7
Severity: serious

Hi,

I just uploaded ruby-nokogiri 1.15.4, and while testing reverse
dependencies, noticed that it breaks this package.

Lucas