A reference cycle is detected related to the ThunderModule

@t-vi is already working on this.

Since Aug 26, 2024.

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## 🐛 Bug

### To Reproduce

```
import torch
import thunder
import weakref
import gc

mod = torch.nn.ReLU()
ref = weakref.ref(mod, lambda _: print("mod deleted!"))
opt_mod = thunder.jit(mod)
# opt_mod = torch.compile(mod)
ref_opt_mod = weakref.ref(opt_mod, lambda _: print("opt_mod deleted!"))
x = torch.randn(10, 10)
refx = weakref.ref(x, lambda _: print("x deleted!"))
opt_mod(x)
del x
del mod
del opt_mod
# gc.collect()
print("done!") # done!
```
with the line of torch.comile(), it outputs:
```
x deleted!
opt_mod deleted!
mod deleted!
done!
```
with thunder it outputs:
```
x deleted!
done!
mod deleted!
opt_mod deleted!
```
@kshitij12345 detected there's a reference cycle:
```
import torch
import thunder
import weakref
import gc

mod = torch.nn.ReLU()
ref = weakref.ref(mod, lambda _: print("mod deleted!"))
opt_mod = thunder.jit(mod)
# opt_mod = torch.compile(mod)
ref_opt_mod = weakref.ref(opt_mod, lambda _: print("opt_mod deleted!"))
x = torch.randn(10, 10)
refx = weakref.ref(x, lambda _: print("x deleted!"))
opt_mod(x)
del x
del mod
del opt_mod
# gc.collect()
print("done!") # done!

if ref_opt_mod() is not None:
import refcycle
graph = refcycle.snapshot()

try:
cycle = graph.shortest_cycle(ref_opt_mod())
print("CYCLE FOUND FROM MOD")
except ValueError:
print("NO CYCLE FROM MOD")
pass
# Save the latest cycle.
cycle.export_json("cycle.json")
cycle.export_image("cycle.png")
```

cc @apaz-cli