test hatchling build system

Author: wing328

bin/configs/python-httpx.yaml

@@ -4,6 +4,7 @@ inputSpec: modules/openapi-generator/src/test/resources/3_0/python/petstore-with
 templateDir: modules/openapi-generator/src/main/resources/python
 library: httpx
 additionalProperties:
+  buildSystem: hatchling
   packageName: petstore_api
   mapNumberTo: float
   poetry1: false

samples/openapi3/client/petstore/python-httpx/pyproject.toml

@@ -35,8 +35,8 @@ mypy = ">= 1.5"
 
 
 [build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [tool.pylint.'MESSAGES CONTROL']
 extension-pkg-whitelist = "pydantic"