pyproject: Include LICENSE in distribution.

As per PEP 639 licenses should be declared with two fields:

  * license is an SPDX license expression consisting of one
    or more license identifiers.
  * license-files is a list of license file glob patterns.

See: https://peps.python.org/pep-0639/

Author: besser82

pyproject.toml

@@ -3,6 +3,7 @@ name = "pyxcrypt"
 version = "0.1.1"
 description = "Python3 bindings for libxcrypt"
 license = "GPL-3.0-or-later"
+license-files = ["LICENSE"]
 authors = [
     {name = "Daniel Zagaynov", email = "[email protected]"}]
 readme = "README.md"