add github workflow for test-pypi cross-OS wheel builds

Author: AlePalu

pyproject.toml

@@ -6,15 +6,9 @@ requires = [
 ]
 build-backend = "scikit_build_core.build"
 
-[tool.scikit-build.cmake.define]
-SKBUILD = "ON"
-
-[tool.scikit-build.wheel]
-py-api = "cp311"
-
 [project]
 name = "fdaPDE"
-version = "2.0.0rc2"
+version = "2.0.0rc3"
 description="The python wrapper to the fdaPDE library for physics-informed spatial and functional data analysis."
 readme = "README.md"
 dependencies = ["numpy", "matplotlib"]