[IMPROVEMENT] Automate release process for installer

[canihavesomecoffee]

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Adds a WiX-based .msi installer for Windows releases, and incorporate this in the release process.

Upon the creation of a new release, the release workflow will be triggered (using the tag as partial version number) and append an .msi as artifact to the release. It will pull in the latest available release from https://github.com/CCExtractor/ccextractorfluttergui for use as GUI.

It is currently not yet using the Rust build.