CompatHelper: bump compat for MeasureBase to 0.14, (keep existing compat)

[github-actions[bot]]

This pull request changes the compat entry for the MeasureBase package from 0.9, 0.10, 0.11, 0.12, 0.13 to 0.9, 0.10, 0.11, 0.12, 0.13, 0.14. 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[bot]]

Codecov Report

Base: 73.97% // Head: 73.97% // No change to project coverage :thumbsup:

Coverage data is based on head (ec84936) compared to base (6ac4a02). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #113 +/- ## ======================================= Coverage 73.97% 73.97% ======================================= Files 16 16 Lines 661 661 ======================================= Hits 489 489 Misses 172 172 ``` 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=JuliaGaussianProcesses). 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=JuliaGaussianProcesses)

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