Try image not demands

Author: benbp

eng/pipelines/templates/jobs/ci.yml

@@ -73,7 +73,7 @@ jobs:
 
       pool:
         name: azsdk-pool-mms-ubuntu-2004-general
-        demands: "ImageOverride -equals azsdk-pool-mms-ubuntu-2004-1espt"
+        image: azsdk-pool-mms-ubuntu-2004-1espt
         os: linux
 
       steps: