Duplicate shared rspec examples in the global namespace

This MR introduced a duplicated shared_examples in the global RSpec scope which means one will never be called. It looks like they are slightly different too so not sure if this is actually working as expected.

WARNING: Shared example group 'enforcing read_packages job token policy' has been previously defined at:
  spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb:1147
and you are now defining it at:
  spec/support/shared_examples/requests/api/packages_shared_examples.rb:103

https://gitlab.com/gitlab-org/gitlab/-/blob/07224b53adf008d2f9a927d8b70ae952cc8b4e55/spec/support/shared_examples/requests/api/packages_shared_examples.rb#L103-107

https://gitlab.com/gitlab-org/gitlab/-/blob/07224b53adf008d2f9a927d8b70ae952cc8b4e55/spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb#L1147-1151