Bump typescript from 5.4.5 to 5.5.4 in /functions

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 5.4.5 to 5.5.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml)
- [Commits](microsoft/TypeScript@v5.4.5...v5.5.4)

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

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

functions/package.json

@@ -30,6 +30,6 @@
     "@tsconfig/node20": "^20.1.4",
     "concurrently": "^8.2.2",
     "cpx2": "^7.0.1",
-    "typescript": "^5.4.5"
+    "typescript": "^5.5.4"
   }
 }