static WebSocketFrame ofContinuation(byte[] data) {
        return ofContinuation(data, true);
    }
Returns a new continuation {@link WebSocketFrame} whose {@link #isFinalFragment()}
is set to {@code true}.
{@code isText} must be {@code true} if this continuation frame follows a text frame.
{@code false} if this follows a binary frame.

@see <a href="https://datatracker.ietf.org/doc/html/rfc6455#section-5.4">Fragmentation</a>
core/src/main/java/com/linecorp/armeria/common/websocket/WebSocketFrame.java