Bump Hex dependency to v0.19.0 (#9357)
Bump Hex dependency to v0.19.0 (#9357)


pedrosnk/elixir,michalmuskala/elixir,pedrosnk/elixir,joshprice/elixir,ggcampinho/elixir,elixir-lang/elixir,ggcampinho/elixir,kimshrier/elixir,kelvinst/elixir,kimshrier/elixir,kelvinst/elixir