It's probably more than you'd need for just two dependencies, but Apache's Ivy does more or less exactly that (although admittedly without a nice web UI)
Another solution for simple builds could be to use git submodules to include your libraries, that way for any commit of the top level you can see exactly what commit of the lower levels you're using
if you look closely you can actually see a literal blinder over her left eye! the reason it helps is because precision shooting is all about repeatability, and both eyes open is a more repeatable position than closing one eye exactly the same way every time