Refresh imported WebCryptoAPI WPT files to current upstream versions,
including the shared fixtures and helper scripts they rely on.
This keeps the in-tree imported coverage up to date and rebaselines the
expectations for the refreshed tests that continue to match Ladybird's
current behavior. The wrapKey_unwrapKey update is handled separately,
since the newer upstream test exercises raw-secret key formats that
needed an engine fix first.
Implement ChaCha20-Poly1305 AEAD using OpenSSL and expose it through
the WebCrypto API, including key management and AEAD parameters.
Add WPT:
/encrypt_decrypt/chacha20_poly1305.tentative.https.any.worker.html
