Notify chromiums code coverage service about builds using buildbucket v2 notifications.

Based on https://chromium-review.googlesource.com/c/chromium/src/+/5889124

Bug: chromium:352560718
Change-Id: I8064ed4437a510bfcbfbe82268389c5fb75739f4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/363980
Commit-Queue: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Christoffer Dewerin <jansson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43096}
diff --git a/infra/config/config.star b/infra/config/config.star
index 742439f..f0127eb 100755
--- a/infra/config/config.star
+++ b/infra/config/config.star
@@ -406,6 +406,11 @@
     ),
 )
 
+# Notify findit about completed builds for code coverage purposes
+luci.buildbucket_notification_topic(
+    name = "projects/findit-for-me/topics/buildbucket_notification",
+)
+
 # Tree closer definitions:
 
 luci.tree_closer(
diff --git a/infra/config/cr-buildbucket.cfg b/infra/config/cr-buildbucket.cfg
index 23a8544..a256607 100644
--- a/infra/config/cr-buildbucket.cfg
+++ b/infra/config/cr-buildbucket.cfg
@@ -5691,3 +5691,8 @@
     service_accounts: "webrtc-try-builder@chops-service-accounts.iam.gserviceaccount.com"
   }
 }
+common_config {
+  builds_notification_topics {
+    name: "projects/findit-for-me/topics/buildbucket_notification"
+  }
+}