Add project-flutter-prod-schedulers to task_triggers.

This follows the pattern for the stagging and try pools. Should help Dart enable sharding for Windows ARM64.

Change-Id: I27f619f6d0b8f7a6fa3926d68aaa0b12bbd80ca9
Reviewed-on: https://flutter-review.googlesource.com/c/infra/+/79460
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: John McDole <codefu@google.com>
Reviewed-by: Dmitry Grand <dmgr@google.com>
diff --git a/config/generated/flutter/luci/realms.cfg b/config/generated/flutter/luci/realms.cfg
index 9d0456f..d222b69 100644
--- a/config/generated/flutter/luci/realms.cfg
+++ b/config/generated/flutter/luci/realms.cfg
@@ -80,6 +80,7 @@
   bindings {
     role: "role/swarming.poolUser"
     principals: "group:project-flutter-led-prod-users"
+    principals: "group:project-flutter-prod-schedulers"
     principals: "project:dart"
     principals: "project:flutter"
     principals: "user:flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com"
@@ -117,6 +118,7 @@
   bindings {
     role: "role/buildbucket.creator"
     principals: "group:project-flutter-led-prod-users"
+    principals: "group:project-flutter-prod-schedulers"
     principals: "user:flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com"
   }
   bindings {
@@ -130,6 +132,7 @@
   bindings {
     role: "role/swarming.taskTriggerer"
     principals: "group:project-flutter-led-prod-users"
+    principals: "group:project-flutter-prod-schedulers"
     principals: "user:flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com"
   }
 }
diff --git a/config/main.star b/config/main.star
index 77a46ee..563634a 100755
--- a/config/main.star
+++ b/config/main.star
@@ -162,6 +162,7 @@
     users = ["flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com"],
     groups = [
         "project-flutter-led-prod-users",
+        "project-flutter-prod-schedulers",
     ],
     projects = [
         "flutter",