Method onEnd

Tests/Libraries/Http/HttpAsyncClientTest.cpp:1078–1090

    httpServer.onRequest = [this, &serverCtx](HttpConnection& connection)
    {
        serverCtx.connection = &connection;
        const bool addedData =
            connection.request.getReadableStream().eventData.addListener<ServerContext, &ServerContext::onData>(
                serverCtx);
        SC_TEST_EXPECT(addedData);
        const bool addedEnd =
            connection.request.getReadableStream().eventEnd.addListener<ServerContext, &ServerContext::onEnd>(
                serverCtx);
        SC_TEST_EXPECT(addedEnd);
    };

    ClientConnection  clientStorage;
    HttpAsyncClient   client;
    ResponseCollector collector;
    ChunkedBodyStream bodyStream;