[quant][graphmode][fx] Add support for cat (#43333)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43333
Porting op tests from test_quantize_jit.py
Test Plan:
TestQuantizeFxOps
Imported from OSS
Reviewed By: z-a-f
Differential Revision: D23243562
fbshipit-source-id: 5c8eab2af592a9ea4afa713fb884e34e0ffd82b1
