Provide Python 3.11 conda binaries

[pmeier]

We just released torch==2.0.0, torchvision==0.15.1 without support for Python 3.11 for the conda binaries. However, following ContinuumIO/anaconda-issues#13082 (comment) all our dependencies should be available as 3.11 starting a few hours ago.

Thus, we should also provide 3.11 conda binaries. Unless there is some blocker that I'm missing they can hit the -c pytorch-nightly channel fairly soon. Maybe we can even provide some post-mortem for the latest release @malfet?

[pmeier]

conda create -n tv311 --dry-run python=3.11 numpy scipy requests Pillow

succeeds, so I think everything is covered from our side.

[malfet]

@pmeier I've already built all the dependencies, so conda python-3.11 wheels has been available for a while, see https://anaconda.org/pytorch-nightly/torchvision

[pmeier]

So we only need to remove this block to get "regular" builds, i.e. pulling all dependencies from -c defaults, right?