70319 Revert usages of the binding’s platformDispatcher to use window instead (a: accessibility, a: tests, cla: yes, framework)

70320 [flutter_tools] make getBuildInfo async (cla: yes, tool)

70321 Add autofill troubleshooting tips to autofillHints documentation (cla: yes, framework, waiting for tree to go green)

70323 [flutter_tools] use initially parsed package config for language version, sound mode determination (cla: yes, tool)

70324 Include null in the type that UpdateUrlFetcher’s Future returns (cla: yes, team, waiting for tree to go green)

70327 [flutter_releases] Flutter 1.22.4 framework cherrypicks (a: tests, cla: yes, d: examples, engine, f: cupertino, f: material design, framework, team, tool)