openrtm_aist_core: 1.1.0-6 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `openrtm_aist_core` to `1.1.0-6`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `1.1.0-5`