fix(deps): update dependency @docsearch/react to v4

Author: renovate[bot]

package-lock.json

@@ -3,7 +3,7 @@
   "description": "Paragon Pattern Library Documentation",
   "version": "1.0.0",
   "dependencies": {
-    "@docsearch/react": "^3.8",
+    "@docsearch/react": "^4.0.0",
     "@fortawesome/free-solid-svg-icons": "^6.1.1",
     "@mdx-js/mdx": "^2",
     "@mdx-js/react": "^2",