chore(deps): update dependency unplugin-auto-import to v20 (#690)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -194,7 +194,7 @@
     "ts-expect": "^1.3.0",
     "tsdown": "^0.14.0",
     "typescript": "^5.9.2",
-    "unplugin-auto-import": "^19.3.0",
+    "unplugin-auto-import": "^20.0.0",
     "unplugin-vue-markdown": "^29.1.0",
     "unplugin-vue-router": "workspace:*",
     "vite": "^7.1.1",