Ruby

In last year, I gave up to make tsort to bundled gems because set depends tsort.

https://github.com/ruby/set/blob/29a253d2259e8d6d9b313dec8418ec5ed0caab08/lib/set.rb#L786

Fortunately, set is now core class. So, there is no library depends on tsort in ruby repository.

I propose to make tsort to bundled gems at the next release(not Ruby 3.5/4.0, for 4.0(?)/4.1)