fix compat and notebooks

[JanLeppert]

• fix compat for 'Interpolations' in relation to other packages (e.g. StatsPlots in RetentionParameterEstimator)
• increase of version number in the notebooks

[codecov[bot]]

Codecov Report

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

Comparison is base (03d9d04) 78.37% compared to head (317eb88) 78.37%. Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #106 +/- ## ======================================= Coverage 78.37% 78.37% ======================================= Files 5 5 Lines 1290 1290 ======================================= Hits 1011 1011 Misses 279 279 ```

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