Add RBE-CAS instance names to buildbucket

This patch adds the new instance names for RBE-CAS to the buildbucket
configuration file.

Bug=b/171879697

Change-Id: I59f719d54db1e56bbae15f3a5960e4503c273e82
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/2571958
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Commit-Queue: Jordan Bayles <jophba@chromium.org>
diff --git a/infra/config/global/cr-buildbucket.cfg b/infra/config/global/cr-buildbucket.cfg
index 7a60c48..9606335 100644
--- a/infra/config/global/cr-buildbucket.cfg
+++ b/infra/config/global/cr-buildbucket.cfg
@@ -198,6 +198,11 @@
           }
         EOF
         properties_j: <<EOF
+          $recipe_engine/cas: {
+            "instance": "chromium-swarm"
+          }
+        EOF
+        properties_j: <<EOF
           $recipe_engine/swarming: {
             "server": "https://chromium-swarm.appspot.com"
           }
@@ -311,6 +316,11 @@
           }
         EOF
         properties_j: <<EOF
+          $recipe_engine/cas: {
+            "instance": "chromium-swarm"
+          }
+        EOF
+        properties_j: <<EOF
           $recipe_engine/swarming: {
             "server": "https://chromium-swarm.appspot.com"
           }