[Proposal] Updating VBox box version

[bri25yu]

• changing box from stretch to buster

Running into some strange Vagrant provisioning errors regarding apt-get installs

[bri25yu]

using debian/stretch64 results in 404 errors when running apt-get. Upgrading from stretch to buster resovles these 404s

[lo-maxwell]

Ran vagrant up -> vagrant ssh -> bundle and got the following error:
`vagrant@buster:~$ cd /vagrant
RVM used your Gemfile for selecting Ruby, it is all fine - Heroku does that too,
you can ignore these warnings with 'rvm rvmrc warning ignore /vagrant/Gemfile'.
To ignore the warning for all files run 'rvm rvmrc warning ignore allGemfiles'.

vagrant@buster:/vagrant$ bundle exec rails s -b 0
Traceback (most recent call last):
19: from script/rails:67:in <main>' 18: from script/rails:67:in require'
17: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands.rb:17:in <top (required)>' 16: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:39:in run_command!'
15: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:75:in server' 14: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:75:in tap'
13: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:78:in block in server' 12: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:78:in require'
11: from /vagrant/config/application.rb:8:in <top (required)>' 10: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler.rb:114:in require'
9: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler/runtime.rb:65:in require' 8: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler/runtime.rb:65:in each'
7: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler/runtime.rb:72:in block in require' 6: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler/runtime.rb:95:in rescue in block in require'
5: from /home/vagrant/.rvm/rubies/ruby-2.5.7/lib/ruby/site_ruby/2.5.0/bundler/runtime.rb:95:in require' 4: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/autotest-rails-4.2.1/lib/autotest/rails.rb:1:in <top (required)>'
3: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/activesupport-4.2.11.1/lib/active_support/dependencies.rb:274:in require' 2: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/activesupport-4.2.11.1/lib/active_support/dependencies.rb:240:in load_dependency'
1: from /home/vagrant/.rvm/gems/ruby-2.5.7/gems/activesupport-4.2.11.1/lib/active_support/dependencies.rb:274:in block in require' /home/vagrant/.rvm/gems/ruby-2.5.7/gems/activesupport-4.2.11.1/lib/active_support/dependencies.rb:274:in require': cannot load such file -- autotest (LoadError)
vagrant@buster:/vagrant$ `