[ONNX] Rename 'sarif_om' to 'sarif' (#85918)
'sarif_om' was the module name in the original repository https://github.com/microsoft/sarif-python-om.
But since we have moved along with various extensions, it wouldn't hurt to rename the module for clarity.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85918
Approved by: https://github.com/abock, https://github.com/thiagocrepaldi, https://github.com/justinchuby
