* Fix `UnicodeDecodeError` exception sending correctly
* Add GitHub Actions workflow for building, publishing, and signing packages to PyPI
* Remove deprecated `tests_require` from setup.py
* Modify to use `setuptools_scm` for package build
* Add support for Python 3.13
* Drop support for Python 3.7/3.8
* Add metadata attributes to the `mbstrdecoder` module
* Improve type annotations
**Full Changelog**: https://github.com/thombashi/mbstrdecoder/compare/v1.1.3...v1.1.4