No, Al won't dissolve in liquid CO2. That is, everything is soluble in everything to some extent, but in this particular case everything goes against Al solubility, so the amount of Al in the liquid CO2 will be below any detection limits.
Plus, liquid CO2 won't ever come into contact with water, at some place it will boil becoming a gas before being dissolved. At this place any Al - if it were present - would simply drop out leaving a solid residue. No chance of that happening here though, see the reason one.