Your deposit should be refundable since you didn't "sign on" or agree to this unexpectedly ridiculous price increase, nor give the dealership/GM a "blank cheque" to charge whatever they wanted for the vehicle. Go back to the dealership to see what they say. If you don't get a refund, I'd suggest contacting GM's area manager for your location, to hash this out. This is the largest Canadian Corvette price increase in history, as far as I know, so it would be completely unfair to suggest you're stuck with it. I expect there will be more people in your same boat. Finally, consult a lawyer if you're told you'll lose your deposit. I can't imagine a Court siding with the dealership: you're waiting all this time, put a deposit down in good faith, unable to get a 2023 due to reduced Canadian Corvette allocations (GM's decision), and now to add insult to injury, you're hit with a HUGE price increase because you were forced into the 2024 MY (and deprived of the 2023 AE model, only available in 2023, to top it all off)...
Let us know how you make out and good luck!