fix: license format + switch to hatchling build backend for PyPI metadata (#8)

Co-authored-by: Gk <gk@Gks-MacBook-Pro.local>

Author: govindkavaturi-art

pyproject.toml

@@ -3,7 +3,7 @@ name = "cueapi"
 version = "0.1.2"
 description = "CLI for CueAPI - the scheduling API for AI agents"
 readme = "README.md"
-license = "MIT"
+license = { text = "MIT" }
 requires-python = ">=3.9"
 authors = [
     {name = "Vector Apps Inc.", email = "support@vector.build"}
@@ -31,5 +31,5 @@ Repository = "https://github.com/cueapi/cueapi-cli"
 cueapi = "cueapi.cli:main"
 
 [build-system]
-requires = ["setuptools>=68"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"