table.fill index truncation for table64

#### Build
Build `wasm-interp` in debug mode

#### Command
```bash
./wasm-interp --enable-memory64 poc.wasm --run-all-exports
```

#### Observed result
`i32:1` (no trap)

#### Expected behavior
Trap because the destination range is out of bounds

#### Environment
- wabt 1.0.39
- OS: Linux x86_64 Ubuntu

[poc.wasm.zip](https://github.com/user-attachments/files/26369535/poc.wasm.zip)