92593 Migrate test to moved FlutterPlayStoreSplitApplication (team, cla: yes, integration_test)

92733 Add the exported attribute to the Flutter Gallery manifest (team, cla: yes, waiting for tree to go green, integration_test)

92812 migrate integration.shard/vmservice_integration_test.dart to null safety (tool, cla: yes, waiting for tree to go green, integration_test)

92861 Remove globals_null_migrated.dart, move into globals.dart (a: text input, tool, cla: yes, waiting for tree to go green, integration_test, a: null-safety)

92901 Exit on deprecated v1 embedding when trying to run or build (team, tool, a: accessibility, cla: yes, waiting for tree to go green, integration_test)