Draft: Remove authenticate_non_public: true in debian package endpoints

What does this MR do?

Show that #300917 (comment 629915606) is not fixable by removing authenticate_non_public: true.

The following tests fail with expected the response to have status code :unauthorized but it was 404. The response was: {"message":"404 Group Not Found"}:

rspec ./spec/requests/api/debian_group_packages_spec.rb[1:1:1:1:18:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/Release.gpg behaves like Debian repository read endpoint with valid container visibility_level: :private, user_role: :anonymous, member: false, user_token: true, expected_status: :unauthorized, expected_body: nil behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:1:1:2:1:1:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/Release.gpg behaves like Debian repository read endpoint behaves like rejects Debian access with unknown container id with an unknown container as anonymous behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:2:1:1:18:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/Release behaves like Debian repository read endpoint with valid container visibility_level: :private, user_role: :anonymous, member: false, user_token: true, expected_status: :unauthorized, expected_body: nil behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:2:1:2:1:1:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/Release behaves like Debian repository read endpoint behaves like rejects Debian access with unknown container id with an unknown container as anonymous behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:3:1:1:18:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/InRelease behaves like Debian repository read endpoint with valid container visibility_level: :private, user_role: :anonymous, member: false, user_token: true, expected_status: :unauthorized, expected_body: nil behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:3:1:2:1:1:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/InRelease behaves like Debian repository read endpoint behaves like rejects Debian access with unknown container id with an unknown container as anonymous behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:4:1:1:18:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/:component/binary-:architecture/Packages behaves like Debian repository read endpoint with valid container visibility_level: :private, user_role: :anonymous, member: false, user_token: true, expected_status: :unauthorized, expected_body: nil behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:4:1:2:1:1:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/dists/*distribution/:component/binary-:architecture/Packages behaves like Debian repository read endpoint behaves like rejects Debian access with unknown container id with an unknown container as anonymous behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:5:1:1:18:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/pool/:component/:letter/:source_package/:file_name behaves like Debian repository read endpoint with valid container visibility_level: :private, user_role: :anonymous, member: false, user_token: true, expected_status: :unauthorized, expected_body: nil behaves like Debian repository GET request returns unauthorized
rspec ./spec/requests/api/debian_group_packages_spec.rb[1:5:1:2:1:1:1:1] # API::DebianGroupPackages GET groups/:id/-/packages/debian/pool/:component/:letter/:source_package/:file_name behaves like Debian repository read endpoint behaves like rejects Debian access with unknown container id with an unknown container as anonymous behaves like Debian repository GET request returns unauthorized

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