Description:
Once an SDK version is installed the action should set an output variable where one can read the version installed for reuse.

Justification:
Workspaces with global.json can skip providing a version to the setup-dotnet action. But when you write more complex workflows with multiple jobs you dont always want to checkout the repository to have that global.json available. I'd like to have a resolved version available once the setup has been run during an initial build job.

Are you willing to submit a PR?

Sure - Should be a simple addition to the action.yml and two lines in index.js 😂