pkg/scheduled_test fixed shelf dependency

pkg/scheduled_test/test/utils.dart

Index: pkg/scheduled_test/test/utils.dart
diff --git a/pkg/scheduled_test/test/utils.dart b/pkg/scheduled_test/test/utils.dart
index 2d27b2df86e3fcd72155c1189524cc6f258f2269..11d04fedb7e840038e23f69d9902c100ced61657 100644
--- a/pkg/scheduled_test/test/utils.dart
+++ b/pkg/scheduled_test/test/utils.dart
@@ -62,7 +62,7 @@ void setUpTimeout() {
 /// Creates a metatest with [body] and asserts that it passes.
 ///
 /// This is like [expectTestsPass], but the [test] is set up automatically.
-void expectTestPasses(String description, Future body()) =>
+void expectTestPasses(String description, body()) =>
   expectTestsPass(description, () => test('test', body));
 
 /// Creates a metatest that runs [testBody], captures its schedule errors, and