Fix pip error

pip fails in production because it cannot find setuptools
(which is installed) and tries to connect it to pypi.

We add the --no-build-isolation option to allow pip to use the setuptools
installed in our python.

src/e3/python/wheel.py

@@ -58,6 +58,7 @@ def build(cls, source_dir: str, dest_dir: str, python_tag: str = "py3") -> Wheel
                     "wheel",
                     ".",
                     "-q",
+                    "--no-build-isolation",
                     "--no-deps",
                     f"-C--python-tag={python_tag}",
                     "-w",