build(deps-dev): update typescript requirement in /src

Updates the requirements on [typescript](https://github.com/Microsoft/TypeScript) to permit the latest version.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v5.4.2...v5.4.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
...

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

src/package.json

@@ -101,7 +101,7 @@
     "sinon": "^17.0.1",
     "split-grid": "^1.0.11",
     "supertest": "^6.3.4",
-    "typescript": "^5.4.2"
+    "typescript": "^5.4.3"
   },
   "engines": {
     "node": ">=18.18.2",