CompatHelper: bump compat for MLUtils to 0.3, (keep existing compat)

[github-actions[bot]]

This pull request changes the compat entry for the MLUtils package from 0.2 to 0.2, 0.3. This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry. It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov-commenter]

Codecov Report

Base: 85.72% // Head: 85.72% // No change to project coverage :thumbsup:

Coverage data is based on head (f1fbfea) compared to base (9cf5ece). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #18 +/- ## ======================================= Coverage 85.72% 85.72% ======================================= Files 34 34 Lines 1758 1758 ======================================= Hits 1507 1507 Misses 251 251 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jorge+Fernandez-de-Cossio-Diaz). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jorge+Fernandez-de-Cossio-Diaz)

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