feat(apps/prod/tekton/setup): enable cloudevent emit and add sink url (…

…#825)

Notice: currently we need update the config map
`tekton-pipelines/feature-flags` manually because of the operator not
support the congfiguration before v0.63.0.
Signed-off-by: wuhuizuo <wuhuizuo@126.com>

---------

Signed-off-by: wuhuizuo <wuhuizuo@126.com>

apps/prod/tekton/setup/operator-config.yaml

@@ -39,6 +39,8 @@ spec:
           key: dedicated
           operator: Equal
           value: test-infra
+    default-cloud-events-sink: http://cloudevents-server.apps.svc/events
+
   trigger:
     default-service-account: "default"
     enable-api-fields: alpha # stable | alpha