If this is Air Canada, bags will be transferred automatically. There is a connections bus you can take that also bypasses security, but not sure if it operates at 2130 (If it does, you will go to the 'back right' when you go down the escalators into the arrival hall - do not go to the NEXUS machines. If it's too late, then you can use NEXUS but will need to exit back into the terminal and re-clear security).

If this is WestJet, I assume it's the same process, but not sure as I've never flown them in this type of itinerary.