Ndradex

What's Changed
* Fix pyproject.toml by astropenguin in https://github.com/astropenguin/ndradex/pull/52


**Full Changelog**: https://github.com/astropenguin/ndradex/compare/v0.3.0...v0.3.1

**Full Changelog**: https://github.com/astropenguin/ndradex/compare/v0.2.2...v0.3.0

- Make use the fullname of a datafile (e.g., `'co.dat'`) as a query in the `ndradex.run()` function
- user can still use a query without extension (e.g., `'co'`), but it will be deprecated in the future
- Default user config (`~/.config/ndradex/config.toml`) is now empty
- this means that default parameter values of the `ndradex.run()` function is exactly used

- Fix 4 by specifying required versions of dependent Python packages in `setup.cfg`