message: compliance: drop packet with decryption error
diff: @@ -474,6 +474,14 @@ impl<Cfg: Config> Endpoint<Cfg> {
  // will be silently discarded, but are a potential indication of a
  // stateless reset from the peer
  + //= https://tools.ietf.org/id/draft-ietf-quic-transport-32.txt#5.2.1
  + //# Due to packet reordering or loss, a client might receive packets for
  + //# a connection that are encrypted with a key it has not yet computed.
  + //# The client MAY drop these packets, or MAY buffer them in anticipation
  + //# of later packets that allow it to compute the key.
  + //
  + // Packets that fail decryption are discarded rather than buffered.
  +
  //= https://tools.ietf.org/id/draft-ietf-quic-transport-32.txt#10.3.1
  //# Endpoints MAY skip this check if any packet from a datagram is
  //# successfully processed. However, the comparison MUST be performed
  