bump packaging req

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires=["setuptools", "wheel", "jupyter_packaging~=0.7.1"]
+requires=["setuptools", "wheel", "jupyter_packaging~=0.7.2"]
 build-backend = "setuptools.build_meta"
 
 [tool.pytest.ini_options]