credentials.response.getPublicKey() inconsistent behaviour across different platforms

[dushebaa]

When creating a new credential, parseCredentialPublicKey is called with a Uint8Array value of credential.response.getPublicKey(). On iOS and macOS systems (idk about linux), the byte length returned by getPublicKey() is 91 bytes. Your tests also make use of a 91-byte public key (credential.test.ts:14).

The problem is, on windows systems, byte array that is returned by credential.response.getPublicKey() is 294 bytes long (tested on Windows 10 22H2 19045.4529, edge, firefox and brave, all have the same issue). It leads to crypto failing to import key in bytesToCryptoKey function, throwing DataError, which leads to createCredential function failing.