Add extension to notify job

* The job will be taken in charge by the runner with 'infrastructure'
tag

manifest-pipeline-yocto.yml

@@ -461,6 +461,8 @@ retrigger:
 
 notify:
   stage: notify
+  extends:
+    - .infrastructure
   image: 
     name: mcr.microsoft.com/azure-cli
     entrypoint: [""]