chore(deps): update dependency @nuxtjs/robots to v6

Author: renovate[bot]

package.json

@@ -33,7 +33,7 @@
     "@nuxt/eslint": "1.15.2",
     "@nuxt/image": "2.0.0",
     "@nuxtjs/i18n": "10.3.0",
-    "@nuxtjs/robots": "5.7.1",
+    "@nuxtjs/robots": "6.0.8",
     "@nuxtjs/seo": "5.1.3",
     "@nuxtjs/sitemap": "7.6.0",
     "@resvg/resvg-wasm": "2.6.2",