[Enhancement] Allow optional use of Node.js built-in crypto SHA-3 & SHAKE

[Harbinger-3]

Currently, crystals-kyber uses the sha3 npm dependency and internally constructs hash objects like:

new SHA3(256);
new SHA3(512);
new SHAKE(128);
new SHAKE(256);

This works fine, but Node.js now supports SHA-3 and SHAKE algorithms natively via crypto.createHash (and crypto.createHmac) as of recent versions:

crypto.createHash('sha3-256');
crypto.createHash('sha3-512');
crypto.createHash('shake128', { outputLength: n });
crypto.createHash('shake256', { outputLength: n });

This removes reliance on external hashing implementation for Node.js environments.

Reduces install size and potential audit warnings from sha3 package.

Likely better performance due to native optimizations.