Log Message:
devel/ruby-msgpack: update to 1.4.5

1.4.5 (2022-02-15)

* Fix to create UTF-8 Symbol keys when symbolize_keys: true
* Fix to assume Symbols as US-ASCII or UTF-8
* Optimize Packer/Unpacker initialization
* Optimize extension class lookup
* Rename Packer#clear as Packer#reset (#clear is still available as an
  alias)