We use docker exec commands against the zuul scheduler container to do
things like backup project keys and rename projects during project
renaming. The transition from Jammy with docker-compose to Noble with
docker compose resulted in this container being renamed
zuul-scheduler_scheduler_1 to zuul-scheduler-scheduler-1. Update the
docker exec's to use the new name.
Change-Id: I2f1e9802f188ce3c4b0816c1cd1660fe9f4615fd
d2e4ac2872