actions 0.1.2

• fix the draft-release action to properly use the full owner & repo name when creating a draft release. (#13, @kelly-sovacool)
• new option in post-release to update a sliding branch (typically named v<major>.<minor>) with new patch releases. (#13, #16, @kelly-sovacool)
• fix logic for get_latest_release_tag() to ignore draft releases. (#14, @kelly-sovacool)