[ONNX] Variable length argument support for quantized_args (#78775)
Add support for decorating functions with variable length arguments in `quantized_args`. This is needed to decorate functions like `symbolic_fn` in `_interpolate_helper` which takes `*args`.
Previously it is not possible to decorate functions like it. Now we can do
```python
@quantized_args(True)
def symbolic_fn(g, input, output_size, *args):
...
```
and the rest of the params are defaulted to non-quantized.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/78775
Approved by: https://github.com/garymm
