Drop an unneeded direct build depndency on wheel (#597)

- wheel is not needed to build sdists
 - with setuptools 71+, wheel is not needed to build wheels either
 - older setuptools would communicate the dependency on wheel themselves

Author: hroncok

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=69", "wheel"]
+requires = ["setuptools>=69"]
 build-backend = "setuptools.build_meta"
 
 [project]