Extend torch-trition conda to 3.11 (#93117)
Also drop 3.7 from both builds and add proper names to the steps
Add `pytorch-nightly` for `conda` builds to test the installation against `pytorch` from the nightly channel as well as get [`filelock`](https://anaconda.org/pytorch-nightly/filelock) dependency for 3.11)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/93117
Approved by: https://github.com/atalman
