[KYUUBI #2042] [KYUUI #2036] Redirect Issues/PR Notifications to notifications@kyuubi.apache.org

### _Why are the changes needed?_

Update `.asf.yaml` to redirect Issues/PR Notifications to notificationskyuubi.apache.org

### _How was this patch tested?_

No test needed

Closes #2042 from zjffdu/notification.

Closes #2042

1f16cb4 [Jeff Zhang] Redirect Issues/PR Notifications to notifications@kyuubi.apache.org

Authored-by: Jeff Zhang <zjffdu@apache.org>
Signed-off-by: Kent Yao <yao@apache.org>

Author: zjffdu

.asf.yaml

@@ -42,5 +42,5 @@ github:
     projects: false
 notifications:
   commits: commits@kyuubi.apache.org
-  issues: dev@kyuubi.apache.org
-  pullrequests: commits@kyuubi.apache.org
+  issues: notifications@kyuubi.apache.org
+  pullrequests: notifications@kyuubi.apache.org