Hint Tensor._make_subclass as a staticmethod (#101961)
Fixes #101862
No more type errors and improved return type value:
```python
import torch
from torch import nn
t = torch.tensor([1, 2, 3], dtype=torch.float32)
t2 = torch.Tensor._make_subclass( # OK
nn.Parameter,
t.data,
)
reveal_type(t2) # Type of "t2" is "Parameter"
t3 = t._make_subclass( # OK
nn.Parameter,
t.data,
)
reveal_type(t3) # Type of "t3" is "Parameter"
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/101961
Approved by: https://github.com/albanD
