Provide espup as winget package

[georgik]

Motivations

Usage of winget is more common on Windows. This way users and adminstrators has higher control over the deployment.
Consider registering espup Windows release at Windows Winget registry. This can save time of users and reduce amount of possible errors during deployment.

Solution

winget install espup

Alternative solution

Package Xtensa toolchain as winget package. This can use similar approach which is already present in Rust winget package.

[SergioGasquez]

Do you know how this should be done? Is there any way to automate uploading the artifact from CI when doing the release?