No versionlist for this dependency / module - Renovate Dependency Bot fails on this dependency

[markussiebert]

What happened?

This package has no version list on goproxy.io so the renovate dependency bot fails on this dependency. For crossplane-runtime it's working.
It looks like there only is a latest version.

How can we reproduce it?

https://goproxy.io/github.com/crossplane/crossplane-tools/@v/list => empty answer
https://goproxy.io/github.com/crossplane/crossplane-tools/@latest => {"Version":"v0.0.0-20230714144037-2684f4bc7638","Time":"2023-07-14T14:40:37Z","Origin":{"VCS":"git","URL":"https://github.com/crossplane/crossplane-tools","Hash":"2684f4bc76380172bdc3813baa38031a2ecf3749"}}

What environment did it happen in?

has nothing to do with crossplane version