DNS issues while installing gems from rubygems.org

Over the last week, I’ve had multiple failures during ‘bundle install’ operations such as

#11 360.8 Gem::RemoteFetcher::UnknownHostError: timed out
#11 360.8 (https://rubygems.org/gems/devise-4.8.0.gem)

They are random across gems and sometimes get resolved with retries. I’m having to submit two or three times to get a successful build. The runners are standard Gitlab hosted instances. Is this the right forum to report these issues?

For the time being, I’m increasing the number of retries for bundler, but it would be nice to expect minimal network errors.

I’m seeing similar errors for running other installers (e.g. apt and pip). Is there a wonky DNS out there?