Bump apps/zammad from `c23e174` to `1723d57`
Bump apps/zammad from `c23e174` to `1723d57`

Bumps [apps/zammad](https://github.com/zammad/zammad) from `c23e174` to `1723d57`.
- [Release notes](https://github.com/zammad/zammad/releases)
- [Commits](https://github.com/zammad/zammad/compare/c23e174ee04737e43b9f436aaaba496390d3a04f...1723d57cdd7acefa1907d9a23ecdd8eccfa42d86)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails