47174 Remove direct usage of linter in the flutter_tools (cla: yes, tool)

47177 Call setEditingState when text changes. (a: tests, a: text input, cla: yes, f: material design, framework, severe: API break)

47181 fix imports to unawaited (cla: yes, tool, waiting for tree to go green)

47187 Fix androidSdk NPE (cla: yes, tool)

47199 implicit-casts: false (a: internationalization, a: tests, cla: yes, framework, team, tool, waiting for tree to go green)

47223 Roll engine bdd4e4d9488e..500f9cedf652 (34 commits) (autoroller: commit, cla: yes)