Now that there is a ZIP archive to download, to avoid the complexities
of unzipping through Node.js we use hub to download the `.zip`, extract
it, and eventually upload the `.msi` back to the release.
The changelog is generated using the git log of pull request merges
since the last tagged release, and is in the following format:
* {PR title} #{PR number}
This commit:
- Adds config for building Windows installers
- Adds an action for fetching exe files built by goreleaser
- Adds an action for building Windows installers
- Adds an action for adding MSI files to an existing GH release
- Adds MSI signing to our release flow
- Disables homebrew formula bumping for prereleases
- Allows the release asset copying action to copy windows assets