Bump typescript from 5.9.3 to 6.0.2

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.9.3...v6.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "jest": "^30.1.3",
     "prettier": "3.8.1",
     "ts-jest": "^29.1.4",
-    "typescript": "~5.9.2",
+    "typescript": "~6.0.2",
     "typescript-eslint": "^8.58.0"
   },
   "homepage": "https://github.com/Azure/openapi-diff",