[CP] [canvaskit] Fall back to multi-context rendering on Firefox and Safari#52141

auto-submit[bot] merged 2 commits intoflutter:flutter-3.19-candidate.1flutter/engine:flutter-3.19-candidate.1from

harryterkelsen:cp-canvaskit-firefox-fixharryterkelsen/engine:cp-canvaskit-firefox-fixCopy head branch name to clipboard