feat: mark templateRef as deprecated (#4894)

Author: ilyaliao

packages/core/templateRef/index.md

@@ -2,6 +2,12 @@
 category: Component
 ---
 
+::: info
+This function will be removed in future version.
+
+Vue 3.5 introduced the `useTemplateRef` API which can effectively replace the functionality of `templateRef`, therefore we recommend using the native approach.
+:::
+
 # templateRef
 
 Shorthand for binding ref to template element.

packages/core/templateRef/index.ts

@@ -3,6 +3,8 @@ import { tryOnMounted } from '@vueuse/shared'
 import { customRef, getCurrentInstance, onUpdated } from 'vue'
 
 /**
+ * @deprecated Use Vue's built-in `useTemplateRef` instead.
+ *
  * Shorthand for binding ref to template element.
  *
  * @see https://vueuse.org/templateRef