Update setuptools requirement to version 80 or higher (#57)

Necessary to support `license` property changes

Author: miketheman

pyproject.toml

@@ -42,5 +42,5 @@ packages = ["cogapp"]
 version.attr = "cogapp.cogapp.__version__"
 
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=80"]
 build-backend = "setuptools.build_meta"