The antenna is pointing two degrees off course, so you wouldn’t need to send a spacecraft all the way to catch up with Voyager 2 and fix it, you’d just need to launch a relay spacecraft to the nearest point that intersects the signal beam. If Voyager 2 is about 32 billion km away, that point would be only about 1 billion km away, assuming the signal is a straight line.
“Only”.
It’s probably not worth it.