ci: build Windows wheel without pip build isolation - #1161
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The pyarts-package target's `python -m build` creates an isolated venv on Windows, and pip re-executed inside that venv cannot load conda's OpenSSL DLLs (`ImportError: DLL load failed while importing _ssl`), breaking the wheel build. On Windows, build pyarts_cpp and run `python -m build --no-isolation` directly in build/python instead, which avoids the isolation venv entirely. Linux and macOS keep the original pyarts-package target. Both `python-build` and `setuptools>=77` are already pinned in environment-dev-win.yml, as required for --no-isolation.
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The Windows CI wheel build currently fails because the
pyarts-packagetarget'spython -m buildcreates an isolated venv, and pip re-executed inside that venv cannot load conda's OpenSSL DLLs (ImportError: DLL load failed while importing _ssl). This PR switches Windows to a build path that avoids the isolation venv entirely, while leaving Linux and macOS unchanged.Changes
.github/workflows/build-test.yml: On Windows, buildpyarts_cppand then runpython -m build --no-isolationdirectly inbuild/python, bypassing the isolation venv that breaks DLL loading. Linux and macOS keep the originalpyarts-packagetarget.