Fix paths causing test failures (#52660)

dev/devicelab/bin/tasks/time_to_development_benchmark__android.dart

@@ -15,7 +15,7 @@ Future<void> main() async {
 }
 
 final Directory flutterGalleryDir =
-    dir(path.join(flutterDirectory.path, 'examples', 'flutter_gallery'));
+    dir(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'flutter_gallery'));
 final Directory editedFlutterGalleryDir =
     dir(path.join(Directory.systemTemp.path, 'edited_flutter_gallery'));
 

dev/integration_tests/flutter_gallery/ios/fastlane/Fastfile

@@ -29,7 +29,7 @@ platform :ios do
     setup_travis
 
     # Relative to this file.
-    raw_version = File.read('../../../../version')
+    raw_version = File.read('../../../../../version')
     puts "Building and deploying version #{raw_version}..."
 
     update_app_identifier(