fix(docs-ui): update @next/mdx and eslint-config-next to v16.1.7

Align remaining Next.js ecosystem packages with the next v16.1.7
upgrade from #33402.

Signed-off-by: Johan Persson <johanopersson@gmail.com>

docs-ui/package.json

@@ -21,7 +21,7 @@
     "@lezer/highlight": "^1.2.1",
     "@mdx-js/loader": "^3.1.0",
     "@mdx-js/react": "^3.1.0",
-    "@next/mdx": "16.1.6",
+    "@next/mdx": "16.1.7",
     "@remixicon/react": "^4.6.0",
     "@uiw/codemirror-themes": "^4.23.7",
     "@uiw/react-codemirror": "^4.23.7",
@@ -43,7 +43,7 @@
     "@types/react": "19.2.10",
     "@types/react-dom": "19.2.3",
     "eslint": "^9",
-    "eslint-config-next": "16.1.6",
+    "eslint-config-next": "16.1.7",
     "postcss": "^8.5.6",
     "postcss-import": "^16.1.1",
     "typescript": "^5",