Intermittent failure in /css/css-color/animation/opacity-animation-ending-correctly-002.html

[delan]

  ▶ TIMEOUT [expected PASS] b'/css/css-color/animation/opacity-animation-ending-correctly-002.html'

• https://github.com/servo/servo/actions/runs/3873030751/jobs/6603248296 (CI: remove branch check steps that don’t actually do anything #29198)
• https://github.com/servo/servo/actions/runs/3873033810/jobs/6603298414 (CI: run WPT tests on macOS #29201)