Add health workflow (#292)

Co-authored-by: Kevin Moore <[email protected]>

Author: mosuem

.github/workflows/health.yaml

@@ -0,0 +1,11 @@
+name: Health
+on:
+  pull_request:
+    branches: [ main ]
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+
+jobs:
+  health:
+    uses: dart-lang/ecosystem/.github/workflows/health.yaml@main
+    permissions:
+      pull-requests: write

.github/workflows/post_summaries.yaml

@@ -6,6 +6,7 @@ on:
   workflow_run:
     workflows: 
       - Publish
+      - Health
     types:
       - completed
 

pkgs/unified_analytics/lib/testing.dart

@@ -1 +1,5 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
 export 'src/enums.dart';