build(deps): bump @notionhq/client in the production-dependencies group

Bumps the production-dependencies group with 1 update: [@notionhq/client](https://github.com/makenotion/notion-sdk-js).


Updates `@notionhq/client` from 2.2.15 to 2.2.16
- [Release notes](https://github.com/makenotion/notion-sdk-js/releases)
- [Commits](makenotion/notion-sdk-js@v2.2.15...v2.2.16)

---
updated-dependencies:
- dependency-name: "@notionhq/client"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/2anki/get-notion-object-title#readme",
   "dependencies": {
-    "@notionhq/client": "^2.2.15"
+    "@notionhq/client": "^4.0.0"
   },
   "devDependencies": {
     "typescript": "^5.0.0",