Add CUDA-12.1 manywheel build to trunk (#99458)
As CUDA-11.7 is getting deprecated anyway.
Also, fix the problem when script actually generated the same workflow twice, overriding 11.8 ones with 11.7+11.7-with-pypi
<!--
copilot:poem
-->
### <samp>🤖 Generated by Copilot at 0c6c182</samp>
> _Oh we are the PyTorch crew and we have a job to do_
> _We build and test the manywheel package with CUDA 11.8_
> _So heave away, me hearties, heave away with all your might_
> _We'll smoke the Linux binary and make sure it runs all right_
Pull Request resolved: https://github.com/pytorch/pytorch/pull/99458
Approved by: https://github.com/dagitses, https://github.com/atalman
