[quant] Add quantized Sigmoid module (#45883)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/45883
Test Plan:
python test/test_quantization.py TestStaticQuantizedModule.test_sigmoid
Imported from OSS
Reviewed By: z-a-f
Differential Revision: D24129116
fbshipit-source-id: aa960549509c60374012f35b1f5be39e90418099
