The return lines at the injectors are often a leak source, particularly if they are many years old. Clean the area up, and see if the leak has stopped with new braided return hose installed. There should NOT be any leaks at the metal injection lines, though. That is unusual. If the leak is at the injector, make sure it's not the return lines. Strategically wrapping areas with pieces or paper towel can help determine the source of a small fuel leak.

It's also possible to have the injector leak between the two halves of the injector body (this is pretty common when taking an injector apart & putting it back together), but that will have fluid build up in the middle of the injector (by the hex flats), not up at the hose connections.