build(deps): bump ueberdb2 from 4.1.13 to 4.1.15 in /src

Bumps [ueberdb2](https://github.com/ether/ueberDB) from 4.1.13 to 4.1.15.
- [Changelog](https://github.com/ether/ueberDB/blob/main/CHANGELOG.md)
- [Commits](ether/ueberDB@v4.1.13...v4.1.15)

---
updated-dependencies:
- dependency-name: ueberdb2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>