docs: update issues

Author: rudyxu1102

active-rfcs/0000-infer-attrs.md

@@ -1,6 +1,6 @@
 - Start Date: 2023-01-01
 - Target Major Version: 3.x
-- Reference Issues: [vuejs/core#3452](https://github.com/vuejs/core/issues/3452), [vuejs/core#5423](https://github.com/vuejs/core/issues/5423)
+- Reference Issues: [vuejs/core#3452](https://github.com/vuejs/core/issues/3452), [vuejs/core#5423](https://github.com/vuejs/core/issues/5423), [vuejs/core#6528](https://github.com/vuejs/core/discussions/6528)
 - Implementation PR: [vuejs/core#7444](https://github.com/vuejs/core/pull/7444)
 
 # Summary