[#134083] Upgrade nested_form_fields (#879)
[#134083] Upgrade nested_form_fields (#879)

This also bumps:
  arel
  builder
  coffee-script-source
  concurrent-ruby
  i18n
  jquery-rails
  json
  minitest
  nokogiri
  rack
  rails-dom-testing
  rake
  sprockets
  sprockets-rails
tablexi/nucore-open,tablexi/nucore-open,tablexi/nucore-open,tablexi/nucore-open