build: wixv4 msi build (fixes #1)

[JPHutchins]

This commit adds a WiX v4 MSI build to the project. The build is run from the msi/build.ps1 script. A GitHub workflow is added to run the build and upload the MSI as an artifact.

MSI artifact here: https://github.com/JPHutchins/wsl-usb-manager/actions/runs/11768450149

Closes #1

[nickbeth]

I've only briefly looked at this, I'll take a deeper look in the next days. I'm wondering if it makes sense to have CI build an msi for every commit on master and for every PR? Personally I don't think so, an msi package only needs to be built for releases which are created manually.

[JPHutchins]

I've only briefly looked at this, I'll take a deeper look in the next days. I'm wondering if it makes sense to have CI build an msi for every commit on master and for every PR? Personally I don't think so, an msi package only needs to be built for releases which are created manually.

It's not implemented yet, but it would also be triggered by a release action and then uploaded to the release.

The reason for doing it "a lot" is coverage. It's nice to see it break on the PR rather than whenever the release is made.

[JPHutchins]

@nickbeth This is rebased to latest and wix is updated to 5.0.2.

[DanTheMan827]

I'd probably consider multiple workflows.

• A reusable build workflow that builds the app and uploads as an artifact, this could run on every commit as well.
• An installer workflow that runs on release which calls the build workflow as a job, then has another job that downloads the artifact from that and builds the installer

[nickbeth]

LGTM, thanks! Sorry for taking so long at this.