refactor: use setuptools auto-discovery for packages

Replace explicit package list with find_packages(include=['deezer_python_gql*'])
so subpackages are discovered automatically.

Author: jdaberkow

pyproject.toml

@@ -35,10 +35,12 @@ dev = [
 
 [tool.setuptools]
 include-package-data = true
-packages = ["deezer_python_gql", "deezer_python_gql.generated"]
 platforms = ["any"]
 zip-safe = false
 
+[tool.setuptools.packages.find]
+include = ["deezer_python_gql*"]
+
 [tool.setuptools.package-data]
 deezer_python_gql = ["py.typed"]