Use Debian 10 as default template for new VMs. Update mastodon playbook
While working on Mastodon little fixes I had to update my VMs to start using Debian 10 (Buster). I have updated the playbook and the libvirt template. Mastodon playbook now uses Yarn, NodeJS and rbenv from each project main repositories instead of OS packages.
Signed-off-by: Birin Sanchez email@example.com