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Fixes #37393 - Adapt rubocop command to work with rubocop version 0.80.1

https://github.com/rubocop/rubocop/blob/v0.80.1/lib/rubocop/options.rb#L148

Correctly evaluate the Puppetfile in pin_modules

For some reason I changed it to eval instead of instance_eval and this
broke.

Fixes: 24a81c701f37 ("Factor out FakePuppetfile so it can be tested in rspec")

pkg:generate_source already prints the path to the tarball

create-archive needs to "return" (print) the path, but there is no need to do it twice

archive puppet lock

if not cancelled as recommended in GitHub documentation
https://docs.github.com/en/actions/learn-github-actions/expressions#always

add GHA based tests

explicitly install racc on Ruby 3.3+

Fixes #37392 - Exclude vendor dir in .rubocop.yaml

Ensure the system encoding is UTF-8

Checking for C is not sufficient, it could also be ISO-8859 or something
else.

By checking Enconding.locale_charmap we can check one place and have one
way to spell "UTF-8". ENV['LANG'] and ENV['LC_*'] support a variety of...

Also add semverse to test group

Support a maximum version in pin_modules rake task