Blog post updated!
This about is the infamous "Day 2 operations" problem. I promise I will post more about these kind of situations.
After using Renovate on my self-hosted Forgejo for a few days, I realized there was an option missing, so I updated my blog post.
If you want to see the change log for the images that need to be updated, and they happen to be in GitHub (.com), then you need to pass a token to the Renovate workflow. I hope it has been well explained now.
https://mteixeira.wordpress.com/2025/02/16/running-renovate-on-self-hosted-forgejo/