Ensure the development steps can be successfully executed with system
ruby on Fedora 36 to try and help new contributors have an easier
on-ramp.
Support running acceptance tests locally, though note that it may
require rvm if vagrant doesn't support the ruby version used by the
distro.
Move existing tests executed with the help of bats to use rspec directly
combined with tags to filter them out from being executed by default.
This allows for more complex assertions as well as easier debug as the
code supports use of setting 'VAGRANT_SPEC_SKIP_CLEANUP' to prevent the
tests from removing the temporary directory created for home and work
directories.
Extend a number of classes from vagrant-spec to override default
behaviour to allow passing of additional environment variables for
packaging tests, as well as supporting the skip cleanup. Given the use
of after to perform the cleanup, need to vendor the vagrant-spec
acceptance context in order to modify it easily.