k2 package conflict with NeMo
Hi,

I was examining `examples/asr/experimental/k2/align_speech_parallel.py` script as I wish to get speech alignments from my trained CTC-based ASR model. Somewhere, I was told that I have to install k2 package to use this script and its recommended method is by using `scripts/speech_recognition/k2/setup.sh`. However, when I executed the `setup.sh` script, its output is like this:
`ImportError: k2 was built using PyTorch 1.7.1+cu101
But you are using PyTorch 1.11.0+cu102 to run it
k2 installed with errors! Please check installation manually.`
As far as I know, NeMo needs Pytorch 1.10.0 or above to function but it seems that k2 has been built by PyTorch 1.7.1.
I know the k2 based scripts in NeMo are experimental for now, but is there any chance to bypass this? 