[bot] Add quantization triage bot script (#45622)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45622
Copied and modified from https://github.com/pytorch/pytorch/blob/master/.github/workflows/jit_triage.yml
Test Plan: Imported from OSS
Reviewed By: raghuramank100
Differential Revision: D24036142
fbshipit-source-id: 41287b6a0390cabe4474c99464d74da2c0934401
