BUG: Fix skbuild to 0.7.1 and wheel to 0.31.1

scikit-build has a regression that includes too much content into the
packages, at least on macOS. There are build issues with wheel 0.33.

Author: thewtex

requirements-dev.txt

@@ -1,2 +1,3 @@
-scikit-build>=0.5.1
+scikit-build==0.7.1
+wheel==0.31.1
 numpy