sicks300: 1.0.3-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `sicks300` to `1.0.3-0`:

- upstream repository: https://github.com/strands-project/sicks300.git
- release repository: https://github.com/strands-project-releases/sicks300.git
- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.11`
- previous version for package: `1.0.1-0`

## sicks300

```
* added <cstddef> for new gcc
* Contributors: Marc Hanheide
```