Update nextjs monorepo to v13

Author: renovate[bot]

package.json

@@ -14,7 +14,7 @@
     "@headlessui/react": "^1.7.13",
     "@octokit/core": "4.2.0",
     "date-fns": "^2.29.3",
-    "next": "12.3.4",
+    "next": "13.4.12",
     "next-seo": "^5.15.0",
     "react": "18.2.0",
     "react-dom": "18.2.0",
@@ -31,7 +31,7 @@
     "autoprefixer": "10.4.13",
     "eslint": "8.35.0",
     "eslint-config-eslint": "7.0.0",
-    "eslint-config-next": "12.3.4",
+    "eslint-config-next": "13.4.12",
     "eslint-config-standard": "17.0.0",
     "eslint-import-resolver-typescript": "2.7.1",
     "eslint-plugin-jsdoc": "39.3.3",