Add builder group to new standalone builders

Adds the builder_group property that was inadvertently omitted from the
newly added Dawn standalone builders.

Bug: 385317083
Change-Id: I3431812d264608640132a4e691cadf1be95cf2a4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/237434
Commit-Queue: Brian Sheedy <bsheedy@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Auto-Submit: Brian Sheedy <bsheedy@google.com>
diff --git a/infra/config/global/generated/cr-buildbucket.cfg b/infra/config/global/generated/cr-buildbucket.cfg
index b18f1d2..ab46677 100644
--- a/infra/config/global/generated/cr-buildbucket.cfg
+++ b/infra/config/global/generated/cr-buildbucket.cfg
@@ -590,6 +590,7 @@
         '    "project": "rbe-chromium-trusted",'
         '    "remote_jobs": 250'
         '  },'
+        '  "builder_group": "dawn",'
         '  "recipe": "dawn/gn_v2"'
         '}'
       service_account: "dawn-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
@@ -617,7 +618,8 @@
           '    "metrics_project": "chromium-reclient-metrics",'
           '    "project": "rbe-chromium-untrusted",'
           '    "remote_jobs": 250'
-          '  }'
+          '  },'
+          '  "builder_group": "dawn"'
           '}'
       }
     }
@@ -634,6 +636,7 @@
       }
       properties:
         '{'
+        '  "builder_group": "dawn",'
         '  "recipe": "dawn/gn_v2"'
         '}'
       service_account: "dawn-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
diff --git a/infra/config/global/gn_standalone_ci.star b/infra/config/global/gn_standalone_ci.star
index 829b395..6b346f1 100644
--- a/infra/config/global/gn_standalone_ci.star
+++ b/infra/config/global/gn_standalone_ci.star
@@ -50,6 +50,7 @@
 
 def generate_properties_for_project(project):
     properties = {
+        "builder_group": "dawn",
         "$build/siso": {
             "project": project,
             "remote_jobs": siso.remote_jobs.DEFAULT,
@@ -110,6 +111,9 @@
             "os": "Ubuntu-22.04",
             "cores": "2",
         },
+        properties = {
+            "builder_group": "dawn",
+        },
         service_account = CI_SERVICE_ACCOUNT,
         shadow_service_account = CI_SHADOW_SERVICE_ACCOUNT,
     )