[Bug] Oryx tool needs to be built with .NET 7

[samruddhikhandale]

From devcontainers/images#855 (comment)
Blocks devcontainers/images#855

Oryx tool needs to be built with .NET 7, however, looking at https://github.com/devcontainers/images/actions/runs/6895550673/job/18760553721?pr=855#step:3:18052, it's getting built with .NET 8. This is definitely a bug in the oryx Feature which needs to be fixed to unblock this PR.

[seesharprun]

I'm working on a PR (microsoft/Oryx#2272) to see if we can get this limitation removed entirely.

The packages referenced in the Directory.Build.props file are causing the build error even if you have .NET 7 installed. The reason is because .NET 8 ships with newer versions of those packages and the build error is intentional to push people to upgrade and not leave critical packages locked to older versions.

[seesharprun]

I think we can consider this bug solved now, correct?

[samruddhikhandale]

Yep, oryx is now built with .NET 8. Thanks @seesharprun for microsoft/Oryx#2272