maint: set a minimal required wheel version in build system specs to …

…improve compatibility with Python 3.10

pyproject.toml

@@ -2,7 +2,8 @@
 # See https://github.com/scipy/scipy/pull/10431 for the AIX issue.
 requires = [
   "setuptools>=19.6",
-  "wheel",
+  # see https://github.com/numpy/numpy/pull/18389
+  "wheel>=0.36.2",
 
   # keep in sync with travis.yml "minimal" specs (Cython and numpy for py36)