chore: 更新版本号至6.8.9

Author: CuteLeaf

package.json

@@ -1,7 +1,7 @@
 {
   "name": "firefly",
   "type": "module",
-  "version": "6.8.8",
+  "version": "6.8.9",
   "scripts": {
     "dev": "astro dev",
     "start": "astro dev",