Do not use pickle to output config entries in repro scripts (#100354)
New output looks like:
```
torch._dynamo.config.dynamic_shapes = True
torch._dynamo.config.assume_static_by_default = False
torch._inductor.config.fallback_random = True
torch._inductor.config.triton.cudagraphs = True
```
instead of an unreadable pickle.
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100354
Approved by: https://github.com/voznesenskym