Python-simpleconf

- feat: add string loaders
- docs: update README to include support for string format in configuration loading
- style: update type hints in loaders and caster to use Dict instead of Mapping

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.6.2...0.7.0

- feat: enhance configuration loaders to support file-like objects

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.6.1...0.6.2

- chore(deps): bump diot to 0.3.1
- refactor: update type hints and clean up code formatting
- chore: add py.typed file for type checking support
- ci: update GitHub Actions workflow to use newer Python versions and action versions

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.6.0...0.6.1

- 📌 Use tomllib for python3.11, tomli when rtoml is not available (https://github.com/pwwang/datar/issues/180)
- 💚 Add windows to CI

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.5.9...0.6.0

- ⬆️ Bump diot to 0.2.1

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.5.8...0.5.9

- ⬆️ Upgrade deps
- ⬇️ Keep rtoml 0.8 because of samuelcolvin/rtoml57
- ⬆️ Bump iniconfig to 2.0
- ⬆️ Bump diot to 0.2

**Full Changelog**: https://github.com/pwwang/python-simpleconf/compare/0.5.7...0.5.8