build(deps): bump pixelheads from 1.0.9 to 1.0.10 in /backend

Bumps [pixelheads](https://github.com/jojomatik/pixelheads) from 1.0.9 to 1.0.10.
- [Release notes](https://github.com/jojomatik/pixelheads/releases)
- [Changelog](https://github.com/jojomatik/pixelheads/blob/beta/release.config.js)
- [Commits](jojomatik/pixelheads@v1.0.9...v1.0.10)

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

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