Do not require wheel for building

setuptools 70.1+ does not need wheel at all;

older versions would fetch wheel
when building wheels (but not sdists).

pyproject.toml

@@ -1,3 +1,3 @@
 [build-system]
-requires = ["setuptools>=42", "wheel"]
+requires = ["setuptools>=42"]
 build-backend = "setuptools.build_meta"