Add webrick as dependency in Gemfile (#244)
Add webrick as dependency in Gemfile (#244)

webrick is not included in Ruby 3.0.0 and later, so it needs to be installed separately.

Co-authored-by: Hugo Locurcio <1720facb761ad1b49c72c19a004605f1a7d73bc4@hugo.pro>
minetest/minetest.github.io,rubenwardy/minetest.github.io,luk3yx/minetest.github.io,luk3yx/minetest.github.io,luk3yx/minetest.github.io,rubenwardy/minetest.github.io,minetest/minetest.github.io,minetest/minetest.github.io,rubenwardy/minetest.github.io