59804 Roll the engine from 965fbbe to b5f5e63 (cla: yes, engine, tool, waiting for tree to go green)

59809 Add integration tests for structured error (cla: yes, tool, waiting for tree to go green)

59810 Revert “flutter.gradle: collect list of Android plugins from .flutter-plugins-dependencies” (cla: yes, tool)

59813 Revert “Add the ability to ignore lines depending on comments” (cla: yes, tool)

59822 [flutter_tools] track null safety usage (cla: yes, tool, waiting for tree to go green)

59826 Enabled expression evaluation in flutter for web by default (cla: yes, tool, waiting for tree to go green)

59832 [versions] update all versions (cla: yes, team, tool, waiting for tree to go green)