Cast computation_node_input_size to int (#103677)
This bandaid fixes yolov3 with automatic_dynamic_shapes.
A more proper fix probably is to figure out why when we
have
```
TypeError: mkldnn_reorder_conv2d_weight(): argument 'input_size' (position 6) must be tuple of ints, but found element of type SymInt at pos 1
```
where the SymInt is known to be constant, we aren't willing to
coerce it to int.
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/103677
Approved by: https://github.com/voznesenskym
