`wasmtime-wasi-crypto` missing `symmetric_state_clone`

`wasi-crypto` has seen some changes recently, and `wasmtime-wasi-crypto` is missing a function. Some of the guest types have also changes. Can we have an update to pull in the latest `wasi-crypto` features?

```
impl super::wasi_ephemeral_crypto_symmetric::WasiEphemeralCryptoSymmetric for WasiCryptoCtx {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `symmetric_state_clone` in implementation
```

CC: @npmccallum, @sunfishcode