Your team's GitLab CE pipeline has four stages executed sequentially: 'lint', 'render', 'simulate', and 'deploy'. The 'render' job (which uses Jinja2 to build device configs) depends only on the 'lint' job's success, but the 'simulate' job that spins up CML must wait for 'render'. Currently, a slow 'ansible-lint' job in the 'lint' stage blocks a completely independent 'yamllint' job, and the whole pipeline is too slow. You want 'render' to start as soon as its specific upstream job finishes rather than waiting for the entire 'lint' stage. Which GitLab CI keyword should you add to build a directed acyclic graph (DAG) and speed up execution?