chore(deps): update pnpm.catalog.docs vitepress to v2.0.0-alpha.12

Author: renovate[bot]

pnpm-lock.yaml

@@ -51,7 +51,7 @@ catalogs:
     unocss: ^66.5.4
     unplugin-icons: ^22.5.0
     unplugin-vue-components: ^30.0.0
-    vitepress: 2.0.0-alpha.10
+    vitepress: 2.0.0-alpha.12
     vitepress-plugin-group-icons: ^1.6.5
     vue: ^3.5.22
     vue-tsc: ^3.1.3