rbwasm: Bundler.require doesn't work

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.

使用 config/boot.rb 入口点在 rbwasm 中复现该失败，并检查 Bundler.require 在其中是如何暴露的。针对报告的 private-method 错误确认其行为，然后验证调用 Bundler.require 会在不发生错误的情况下加载打包的 gems。