Incorrect 10.0.5 tried to be downloaded

This comment "blames" your repo and said that it's since been fixed but there hasn't been a code change for 6 days to this repos main branch actions/setup-dotnet#711 (comment)

This repo doesn't contain the aka.ms links that drive the behavior of the install-scripts, which is why you don't see any changes. These changes are more like configuration changes and are managed from processes in a separate, .NET release-related repoi.