1.1.1: Add GitHub Actions for publishing Windows dlls on a release

[TysonAndre]

Change the release checklist to start creating releases again.

https://pecl.php.net/package/ast still doesn't have releases, and the php 8.2.0 stable release is close to being published

A similar workflow succeeded in https://github.com/TysonAndre/var_representation/actions/runs/3260935531

This limits dlls to be published on stable releases, to save resources, and to avoid creating dlls for unmerged PRs or functionality that may be revised later.