Bump typescript from 4.9.5 to 5.9.3 in /languageservice

Bumps [typescript](https://github.com/microsoft/TypeScript) from 4.9.5 to 5.9.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release-publish.yml)
- [Commits](https://github.com/microsoft/TypeScript/compare/v4.9.5...v5.9.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 5.9.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

languageservice/package.json

@@ -71,6 +71,6 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^29.0.3",
     "ts-node": "^10.9.1",
-    "typescript": "^4.8.4"
+    "typescript": "^5.9.3"
   }
 }