Yeah, it's nice when that happens
I use plain Arch not Endeavour, but with the AUR I presume you should also check now and again whether old dependency packages can also be removed with pacman -Qtd... you might be able to find even more space ๐
Advanced: if you know what you're doing, you can try:
sudo pacman -Rnsc $(pacman -Qqtd)
Don't say I didn't warn you if it breaks something...