chore(deps): update dependency @docsearch/react to v4 (#831)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docs/package.json

@@ -21,7 +21,7 @@
     "@astrojs/rss": "^4.0.11",
     "@astrojs/sitemap": "^3.2.1",
     "@docsearch/css": "^4.3.2",
-    "@docsearch/react": "^3.8.2",
+    "@docsearch/react": "^4.3.2",
     "@iconify-json/cib": "^1.2.2",
     "@iconify-json/devicon": "^1.2.11",
     "@iconify-json/logos": "^1.2.4",