ZIF Sockets for xbee
They aren't specific to a ZigBee but ZIF sockets are available with a single row of pins. They are often referred to as ZIF SIL (single in line) or strip sockets. ZIP (zero insertion pressure) is another common term that you can use while searching. The following for example is a 3M part number 210-2599-00-0602 from the Textool ZIP Strip Sockets range so you could try a pair of these: