Utilise the SMT key hash

[Mirko-von-Leipzig]

Now that 0xMiden/protocol#2932 has landed, we can use it in our SMT pipeline as per

node/crates/store/src/account_state_forest/mod.rs

Lines 95 to 99 in 426d4b5

	/// Reverse lookup from hashed SMT storage keys to raw storage map keys.
	///
	/// Ideally this would be a mapping from `StorageMapKeyHash` to `StorageMapKey` but
	/// unfortunately `StorageMapKeyHash` does not implement `Hash`.
	storage_map_key_cache: LruCache<Word, StorageMapKey>,

once we have updated protocol to include this.