rtshell_core: 3.0.3-0 in 'groovy/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rtshell_core` to `3.0.3-0`:

- distro file: `groovy/distribution.yaml`
- bloom version: `0.5.4`
- previous version for package: `3.0.2-0`

## rtctree

```
* add depends to git and CA-cert fix
* Contributors: Kei Okada
```

## rtshell

```
* add depends to git and CA-cert fix
* Contributors: Kei Okada
```

## rtshell_core

- No changes

## rtsprofile

```
* add depends to git and CA-cert fix
* Contributors: Kei Okada
```