build(deps): bump ujson from 5.12.1 to 5.13.0

Bumps [ujson](https://github.com/ultrajson/ultrajson) from 5.12.1 to 5.13.0.
- [Release notes](https://github.com/ultrajson/ultrajson/releases)
- [Commits](ultrajson/ultrajson@5.12.1...5.13.0)

---
updated-dependencies:
- dependency-name: ujson
  dependency-version: 5.13.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -117,7 +117,7 @@ dependencies = [
   "types-requests==2.32.4.20250611",
   "typing-inspection==0.4.2",
   "typing_extensions==4.15.0",
-  "ujson==5.12.1",
+  "ujson==5.13.0",
   "urllib3==2.7.0",
   "uvicorn==0.35.0",
   "zipp==3.23.0",