update build backend to hatchling + hatch-vcs

Author: jcmgray

pyproject.toml

@@ -50,11 +50,14 @@ docs = [
 
 
 [build-system]
-build-backend = "setuptools.build_meta"
-requires = ["setuptools>=45", "setuptools_scm[toml]>=6.2"]
+requires = ["hatchling", "hatch-vcs"]
+build-backend = "hatchling.build"
 
-[tool.setuptools_scm]
-write_to = "autoray/_version.py"
+[tool.hatch.version]
+source = "vcs"
+
+[tool.hatch.build.hooks.vcs]
+version-file = "autoray/_version.py"
 
 [tool.pytest.ini_options]
 testpaths = "tests"