fix(deps): update dependency @notionhq/client to v4

Author: renovate[bot]

package-lock.json

@@ -26,7 +26,7 @@
   "homepage": "https://github.com/ydataai/update-notion-page#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
-    "@notionhq/client": "^2.2.4"
+    "@notionhq/client": "^4.0.0"
   },
   "devDependencies": {
     "@vercel/ncc": "^0.36.1",