There is a command to run this

scp -r build-artifacts/aarch64-linux/<name-of-deployment> <username>@<device-address>:deployment

but there is issue if the deployment already exists from a previous class.

I would suggest using this command

rsync -a --delete build-artifacts/aarch64-linux/<name-of-deployment>/ pi:~/deployment

This command deletes the destination's deployment directory AND copies over your deployment. Thus, no more confusion from leftover files generated from a previous class.