Pyprod

- Added `default` parameter to the ``task``.
- Removed `depends` parameter from the ``task``.
- Added --use-git command-line option.

**Full Changelog**: https://github.com/atsuoishimoto/pyprod/compare/0.4.0...0.5.0

- Swapped the behavior of quote() and squote() to make their naming more intuitive.
- Add `task` decorator.
- Change the parameter name target to targets.
- Add --rebuild option.

- Arguments for build and check function are converted to string.
- Add built-in functions.
- Validate rule dependencies.

Fix README.rst

- Fix the error in Python 3.12 or earlier versions.

Initial release