Do some better linting (#13)

* Do some better linting

* Update names, Packer version, and more

* Do not lint on push

* More linting and scripting

* Cleanup shellcheck lint

* Add Packer format check

* Fix Packer formatting

* Limit to only one

* Remove generated HCL files

* Only lint checked files

* Use pipes instead

* Improve attempt to build

Actually go back to attempting to build boxes on GitHub. Maybe it will
work better with this structure

* Change to using environment files

* Initialize plugins, first

* More verbose usage of the file

* Do the output properly this time

* PACKER_LOG set to 1

* No need for python3 anymore

* Limit to only one result

* Choose a specific CPU model

* Init separately

* Update actions version

* Add version outputting

* Correct actions version

* Try to execute qemu properly

* Fix CPU model name

* Do not over-subscribe GitHub runners

* Try type instead of command to guard runs

* Do not write to non-existent folder

* Cache packer plugins

* Use ~ instead of /home/greg

* Try the proper path

* Move to intelligent matrix

* Set global env path

* Add lots of waits for VBoxManage on hosted runners

* Add more waits

* Add more waits

distros/ubuntu/20.04/finalize.sh

@@ -10,7 +10,7 @@ apt upgrade -y
 sed -i -E -e 's,^(ACTIVE_CONSOLES="/dev/tty).*",\11,' /etc/default/console-setup
 
 # Make sshd faster
-echo << EOF > /etc/ssh/sshd_config.d/00-vagrant_accept_pubkey.conf
+cat << EOF > /etc/ssh/sshd_config.d/00-vagrant_accept_pubkey.conf
 UseDNS no
 PubkeyAcceptedKeyTypes +ssh-rsa
 EOF