Installation of version 17.9.0 fails with unavailable dependency

[balasankarc]

Description

When trying to install version 17.9.0, Rubygems resolves the dependency chef-utils to a non-existent version 17.10.26.

To reproduce, run the following command

$ gem install ohai --version 17.9.0                                                                                                              
ERROR:  Could not find a valid gem 'chef-utils' (= 17.10.26) (required by 'ohai' (= 17.9.0)) in any repository
ERROR:  Possible alternatives: chef-utils

[balasankarc]

Seems in chef/chef@c2c4e6e, version 17.10.26 of chef-utils was cut, but can't be found in Rubygems - https://rubygems.org/gems/chef-utils/versions

[balasankarc]

This issue caused master branch builds (which attempts to install Ohai 17.9.0) at GItLab to fail. Issue being tracked at https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/7267.

[balasankarc]

/cc @vkarve-chef

[twk3]

This appears to be because chef-config is up as 17.10.26 and is depending on a version of chef-utils that is not present in rubygems.

[gracinet]

I'm affected by this, too.

Preinstalling chef-config 17.10.19 (looks to be the highest before 17.10.26 on rubygems) worked for me to unblock the installation of ohai