Update dependency @docsearch/js from 3.9.0 to v4 (docs/package.json)

Author: renovate[bot]

docs/package-lock.json

@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@docsearch/css": "3.9.0",
-    "@docsearch/js": "3.9.0",
+    "@docsearch/js": "4.0.1",
     "@thulite/doks-core": "1.8.0",
     "@thulite/images": "3.3.0",
     "@thulite/inline-svg": "1.2.1",