Repository for "concat-stream" missing

[PaulSimode]

The guy providing the "concat-stream" package on GitHub (@hugomrdias) stopped providing it. According to web archive, it's a fork of https://github.com/maxogden/concat-stream.

This gave me trouble while building, and the solution was to replace hugomrdias with maxogden in yarn.lock and yarn.public.lock, as well as remove the checksums in the respective places.