Update CI to use docker-compose v2

Author: Nemo157

dockerfiles/run-gui-tests.sh

@@ -5,7 +5,7 @@ set -e
 # Just in case it's running, we stop the web server.
 docker compose stop web
 
-docker compose up -d db s3
+docker compose up --wait --wait-timeout 30 db s3
 
 # If we have a .env file, we need to temporarily move it so
 # it doesn't make sqlx fail compilation.