Bump attohttpc from 0.28.2 to 0.28.3 in the all group

Bumps the all group with 1 update: [attohttpc](https://github.com/sbstp/attohttpc).


Updates `attohttpc` from 0.28.2 to 0.28.3
- [Release notes](https://github.com/sbstp/attohttpc/releases)
- [Commits](sbstp/attohttpc@v0.28.2...v0.28.3)

---
updated-dependencies:
- dependency-name: attohttpc
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

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