turtlebot: 2.2.4-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `turtlebot` to `2.2.4-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `2.2.3-0`

## linux_hardware

- No changes

## turtlebot

- No changes

## turtlebot_bringup

```
* add depth argument to configure scan_processing. With this configuration scan works for both depth_regratation false and true
* Fixing "Error with diagnostics.yaml for roomba #110 <https://github.com/turtlebot/turtlebot/issues/110>"
* Contributors: Jihoon Lee, Luka Čehovin
```

## turtlebot_description

- No changes