Use top level namespace for Rails::Railtie class

[seemiller]

Updated a Rails app to 7.2. When I tried to run rspec, I got the following error.

An error occurred while loading rails_helper.
Failure/Error: require_relative '../config/environment'

NameError:
  uninitialized constant Dotenv::Rails::Railtie
# ./vendor/bundle/ruby/3.3.0/gems/dotenv-beefy-0.2.0/lib/dotenv/beefy/railtie.rb:6:in `<module:Beefy>'
# ./vendor/bundle/ruby/3.3.0/gems/dotenv-beefy-0.2.0/lib/dotenv/beefy/railtie.rb:5:in `<module:Dotenv>'
# ./vendor/bundle/ruby/3.3.0/gems/dotenv-beefy-0.2.0/lib/dotenv/beefy/railtie.rb:4:in `<main>'
# ./vendor/bundle/ruby/3.3.0/gems/bootsnap-1.18.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
# ./vendor/bundle/ruby/3.3.0/gems/zeitwerk-2.6.17/lib/zeitwerk/kernel.rb:34:in `require'
# ./vendor/bundle/ruby/3.3.0/gems/dotenv-beefy-0.2.0/lib/dotenv/beefy.rb:2:in `<main>'
# ./vendor/bundle/ruby/3.3.0/gems/zeitwerk-2.6.17/lib/zeitwerk/kernel.rb:34:in `require'
# /usr/local/bundle/gems/bundler-2.5.17/lib/bundler.rb:212:in `require'
# ./config/application.rb:21:in `<top (required)>'
# ./config/environment.rb:4:in `require_relative'
# ./config/environment.rb:4:in `<top (required)>'
# ./spec/rails_helper.rb:6:in `require_relative'
# ./spec/rails_helper.rb:6:in `<top (required)>'
# ------------------
# --- Caused by: ---
# LoadError:
#   cannot load such file -- dotenv-beefy
#   ./vendor/bundle/ruby/3.3.0/gems/zeitwerk-2.6.17/lib/zeitwerk/kernel.rb:34:in `require'

Updated the run_tests workflow to use recent versions of Ruby and setup-ruby.
And also looks like my editor cleaned up some whitespace.

[seemiller]

@larsklevan @cfurrow Hey guys! As maintainers of dotenv-beefy, could you take a look at this PR! Thanks!

[cfurrow]

Thanks!

[larsklevan]

@wireframe looking at https://rubygems.org/gems/dotenv-beefy it looks like you own the published version of this gem. Are you up for publishing a new version with this fix?

[wireframe]

Are you up for publishing a new version with this fix?

Of course! I'll get that done this morning, and check to see if it's possible to transition rubygem ownership to an organizer account (any tips appreciated).

[wireframe]

This PR has been merged and included in the 0.2.1 release which is now published to rubygems.