Binary package “ruby-sass” in ubuntu focal

deprecated CSS compiler - use sassc or ruby-sassc instead

 Ruby Sass should no longer be used,
 and will no longer be receiving any updates.
 .
 Please use sassc or ruby-sassc instead.
 .
 Sass makes CSS fun again. Sass is an extension of CSS3, adding nested
 rules, variables, mixins, selector inheritance, and more.
 .
 It's translated to well-formatted, standard CSS using the command line
 tool or a web-framework plugin.