Pin the goldens repo to a specific commit in the android_views test. (#25678)

dev/integration_tests/android_views/pubspec.yaml

diff --git a/dev/integration_tests/android_views/pubspec.yaml b/dev/integration_tests/android_views/pubspec.yaml
index 128aea2..ec2cf20 100644
--- a/dev/integration_tests/android_views/pubspec.yaml
+++ b/dev/integration_tests/android_views/pubspec.yaml
@@ -12,6 +12,7 @@
   assets_for_android_views:
     git:
       url: https://github.com/flutter/goldens.git
+      ref: c47f1308188dca65b3899228cac37f252ea8b411
       path: dev/integration_tests/assets_for_android_views
 
   async: 2.0.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"