69234 [flutter_releases] Flutter 1.22.3 framework cherrypicks (a: tests, cla: yes, engine, f: cupertino, f: material design, framework, team, tool)

69241 Revert “Updated SearchDelegate to follow custom InputDecorationTheme (#55209)” (cla: yes, f: material design, framework, waiting for tree to go green)

69251 AppBar draws its defaults from theme.colorScheme (cla: yes, f: material design, framework)

69312 Update FAB elevation to match spec (cla: yes, f: material design, framework)

69346 Adaptive constructor / TextInputAction docs fix (cla: yes, f: cupertino, f: material design, framework, waiting for tree to go green)