27084 [web] replace browser-related conditional logic with BrowserEnvironment (cla: yes, platform-web, needs tests)

27086 Roll Fuchsia Mac SDK from 8L02NQinV… to TwKuP0eAM… (cla: yes, waiting for tree to go green)

27087 [flutter_releases] Flutter Stable 2.2.3 Engine Cherrypicks Pt 2 (platform-android, cla: yes, needs tests)

27088 Update include path in FlutterDarwinContextMetal.mm (cla: yes, waiting for tree to go green, needs tests)

27089 [web] fix macOS info collection; print only on bot; propagate errors (cla: yes, platform-web, needs tests)