Incorrect digestLength in the XXH3_128 algorithm

Hello!
I've found out that [XXH3_128.digestLength](https://github.com/appmattus/crypto/blob/409aeea99038a121b7127b91cae7b3c23b0b1852/cryptohash/src/commonMain/kotlin/com/appmattus/crypto/internal/core/xxh3/XXH3_128.kt#L43) returns 8, not 16. 
Could you double-check and fix the length, please? Thank you very much for your attention and participation.
