Bump the pip group across 1 directories with 1 update

Bumps the pip group with 1 update in the /components/website-backend directory: [orjson](https://github.com/ijl/orjson).


Updates `orjson` from 3.9.13 to 3.9.15
- [Release notes](https://github.com/ijl/orjson/releases)
- [Changelog](https://github.com/ijl/orjson/blob/master/CHANGELOG.md)
- [Commits](ijl/orjson@3.9.13...3.9.15)

---
updated-dependencies:
- dependency-name: orjson
  dependency-type: indirect
  dependency-group: pip-security-group
...

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