static WebSocketFrame ofPooledContinuation(ByteBuf data) {
        return ofPooledContinuation(data, true);
    }
(Advanced users only) Returns a new continuation {@link WebSocketFrame} with the {@link ByteBuf}
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 #ofContinuation(byte[])
@see PooledObjects
core/src/main/java/com/linecorp/armeria/common/websocket/WebSocketFrame.java