Align stream composition with stream SDK architecture 

Change stream composition structure to use `stream-task-starter-parent` instead of `stream-compositions`

```
<artifactId>stream-compositions</artifactId>
<groupId>com.backbase.stream</groupId>
<version>3.39.1</version>
```
to
```
<groupId>com.backbase.stream</groupId>
<artifactId>stream-task-starter-parent</artifactId>
<version>3.39.1</version>
```