Bumps [sinon](https://github.com/sinonjs/sinon) from 15.0.2 to 15.0.3.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/main/docs/changelog.md)
- [Commits](https://github.com/sinonjs/sinon/compare/v15.0.2...v15.0.3)

---
updated-dependencies:
- dependency-name: sinon
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>