Release candidate with deployment trigger type filtering support

This release adds support for filtering (or not) on the Cloudflare deployment trigger types using the deployment_trigger input. This allows deletion of deployments using the ad_hoc trigger type. Additionally the release now supports an optional keep input. This defaults to 0, but you can optionally specify a number of deployments to keep.

The deployment trigger type support was contributed by @zaosoula. Thanks ❤️