EasySettings uninstallable with setuptools>=59

[ziima]

Installation of EasySeetings using setuptoosl>=59 fails with

      File "/usr/lib/python3.9/distutils/dist.py", line 1117, in write_pkg_info
        self.write_pkg_file(pkg_info)
      File "/app/.virtualenvs/ginger/lib/python3.9/site-packages/setuptools/dist.py", line 167, in write_pkg_file
        write_field('Summary', single_line(self.get_description()))
      File "/app/.virtualenvs/ginger/lib/python3.9/site-packages/setuptools/dist.py", line 151, in single_line
        raise ValueError('Newlines are not allowed')
    ValueError: Newlines are not allowed

The problem is the newline at the end of description.