@Nullable
    static RequestTarget forClient(String reqTarget) {
        return forClient(reqTarget, null);
    }
Returns a {@link RequestTarget} parsed and normalized from the specified request target string
in the context of client-side application. It rejects an authority form request target.

@param reqTarget the request target string
@return a {@link RequestTarget} if parsed and normalized successfully, or {@code null} otherwise.
@see #forServer(String)
core/src/main/java/com/linecorp/armeria/common/RequestTarget.java