cob_robots: 0.5.3-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `cob_robots` to `0.5.3-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `0.5.2-0`

## cob_bringup

```
* add dependency to ipa_canopen_ros
* Contributors: Florian Weisshardt
```

## cob_controller_configuration_gazebo

- No changes

## cob_default_robot_config

- No changes

## cob_hardware_config

- No changes

## cob_monitoring

- No changes

## cob_robots

- No changes