ns for fx: move conv weight test case to new API (#53761)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53761
Moves the testing of conv weight matching to new NS APIs.
Test Plan:
```
python test/test_quantization.py TestFXNumericSuiteCoreAPIsModels.test_compare_weights_conv
```
Imported from OSS
Reviewed By: hx89
Differential Revision: D26967108
fbshipit-source-id: af3647733f954a657e0868c2c40642018de9ea49
