Right now it is my understanding that ms-python.vscode-python-envs is bundled with openvsx's python: https://open-vsx.org/extension/ms-python/python - however it does not seem to exist as a separate package which to the best of my understanding prevents depending directly on it:
❌ Cannot resolve dependency: ms-python.vscode-python-envs
See the documentation for more information:
https://github.com/eclipse/openvsx/wiki/Publishing-Extensions