chore(deps-dev): bump typescript from 5.9.3 to 6.0.3 in /infra

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/compare/v5.9.3...v6.0.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

infra/package.json

@@ -16,7 +16,7 @@
     "aws-cdk-lib": "2.260.0",
     "constructs": "10.6.0",
     "tsx": "4.22.4",
-    "typescript": "^5.5.0",
+    "typescript": "^6.0.3",
     "vitest": "3.2.7"
   },
   "engines": {