Set maximum pybind11 version requirement (only used when building wheels)

Author: njroussel

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "wheel", "scikit-build", "cmake", "ninja", "pybind11>=2.10.1"]
+requires = ["setuptools", "wheel", "scikit-build", "cmake", "ninja", "pybind11>=2.10.1,<=v2.11.1"]
 
 [tool.pytest.ini_options]
 norecursedirs = [ "ext" ]