0.40.1

• Fix items and values returning generators instead of views (no len, single iteration), eg. with toml-rs. #636 (by @Gabrieljr42 in #637)
• Honor freezing when deleting or popping a keypath and when merging into a frozen benedict instance. (by @helo060228 in #635)
• Support empty and keyword arguments in update method (eg. update(key=value)). (by @xiehuanyi in #633)
• Fix BaseDict.get and pop type annotations with fallback values of a different type. (by @xiehuanyi in #632)
• Set minimum setuptools version in [build-system].
• Bump requirements and GitHub actions.