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

Author: renovate[bot]

pnpm-lock.yaml

@@ -23,7 +23,7 @@ catalog:
   splitpanes: ^4.0.4
   typescript: ^5.9.2
   unocss: ^66.4.2
-  unplugin-auto-import: ^19.3.0
+  unplugin-auto-import: ^20.0.0
   vite: ^7.1.1
   vite-hot-client: ^2.1.0
   vite-plugin-dts: ^4.5.4