Simplify yaml schema

[dweindl]

Avoid repetitions in yaml schema.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.33%. Comparing base (4179d03) to head (65c6304).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #264 +/- ## ======================================== Coverage 76.33% 76.33% ======================================== Files 36 36 Lines 3228 3228 Branches 783 783 ======================================== Hits 2464 2464 Misses 559 559 Partials 205 205 ```

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[dweindl]

• [x] the v1 schema should also be updated