Add publish extension parameter (#18881)

Author: karthiknadig

build/azure-pipeline.stable.yml

@@ -14,9 +14,16 @@ resources:
       ref: main
       endpoint: Monaco
 
+parameters:
+  - name: publishExtension
+    displayName: 🚀 Publish Extension
+    type: boolean
+    default: false
+
 extends:
   template: azure-pipelines/extension/stable.yml@templates
   parameters:
+    publishExtension: ${{ parameters.publishExtension }}
     buildSteps:
       - task: NodeTool@0
         inputs: