chore(deps): bump diesel from 2.3.8 to 2.3.9

Bumps [diesel](https://github.com/diesel-rs/diesel) from 2.3.8 to 2.3.9.
- [Release notes](https://github.com/diesel-rs/diesel/releases)
- [Changelog](https://github.com/diesel-rs/diesel/blob/main/CHANGELOG.md)
- [Commits](diesel-rs/diesel@v2.3.8...v2.3.9)

---
updated-dependencies:
- dependency-name: diesel
  dependency-version: 2.3.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]