runway: Increase CPU requests back to 2, due to minimum cpu:memory ratio
Fixup for !496 (merged).
Rollout failed: https://gitlab.com/gitlab-com/gl-infra/platform/runway/deployments/ai-gateway/-/jobs/5734456835.
Invalid value specified for container memory. For 1.0 CPU, memory must be between 128Mi and 4Gi inclusive. For more troubleshooting guidance, see https://cloud.google.com/run/docs/configuring/memory-limits
Hopefully the 2 CPUs will fir the 8G.