Add tests for BuildGroup names

tools/gardening/lib/src/buildbot_loading.dart

Index: tools/gardening/lib/src/buildbot_loading.dart
diff --git a/tools/gardening/lib/src/buildbot_loading.dart b/tools/gardening/lib/src/buildbot_loading.dart
index b7f478cdc330281fc5492a5d1a54ace4e508ce23..6941d3ae4967e73a605f781e3f196b00a073bdd9 100644
--- a/tools/gardening/lib/src/buildbot_loading.dart
+++ b/tools/gardening/lib/src/buildbot_loading.dart
@@ -37,7 +37,7 @@ Future<BuildResult> readBuildResultFromHttp(
   Future<String> read() async {
     Uri uri = buildUri.toUri();
     log('Reading buildbot results: $uri');
-    return await readUriAsText(client, uri);
+    return readUriAsText(client, uri);
   }
 
   return _readBuildResult(buildUri, read);