[DRE-maint] Bug#1069089: ruby-rubygems: Broken platform detection which lead to unability to install sass-embedded

[Ralf Jung]

Hi again,

Turns out I can fix things by manually editing 
/usr/lib/ruby/vendor_ruby/rubygems/platform.rb, and un-doing the patch mentioned 
at <https://github.com/jekyll/jekyll/issues/9478#issuecomment-1785797746>.
But that's obviously quite the hack; would be nice if the faulty patch could be 
removed from the Debian package so that one can use bundler again.

Kind regards,
Ralf