[ServiceBus] trigger ci on core pr (#36417)

Author: swathipil

sdk/servicebus/ci.yml

@@ -10,6 +10,7 @@ trigger:
   paths:
     include:
     - sdk/servicebus/
+    - sdk/core/
 
 pr:
   branches:
@@ -22,6 +23,7 @@ pr:
   paths:
     include:
     - sdk/servicebus/
+    - sdk/core/
 
 extends:
   template: ../../eng/pipelines/templates/stages/archetype-sdk-client.yml