Steps to reproduce

Open the PowerShell repo in a VSCode devcontainer.

The Dockerfile pulls version 3.1.100 instead of 3.1.101, this was omitted in #11582 .

Relevant file/line: https://github.com/PowerShell/PowerShell/blob/master/.devcontainer/Dockerfile#L6

Related issue: #11220

When you try to do dotnet restore it fails, saying dotnet sdk 3.1.101 is required.

Expected behavior

container dotnet sdk version is kept in sync with sdk version of the rest of the project.

Actual behavior

bumping the container image version number is a manual step, that can be easily overlooked.

Environment data

v7.0.0-rc.2