rbwasm: Bundler.require doesn't work

[nvladimiroff]

I'd expect calling Bundler.require to load all of my gems, but instead, I get this error:

vm.js:739 Uncaught RbError: /config/boot.rb:6:in '<top (required)>': private method 'require' called for module Bundler (NoMethodError)

Manually requiring gems instead does work.

Also, if this is something a new contributor could help out with fixing, I'd be glad to give it a shot.