build(pkg): declare license files

Author: zigai

pyproject.toml

@@ -8,11 +8,11 @@ readme = "README.md"
 authors = [
     {name="zigai"},
 ]
-license = {file="LICENSE"}
+license = "MIT"
+license-files = ["LICENSE", "NOTICE"]
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3 :: Only",