Depend on audmath>=1.3.0

[hagenw]

audiofile uses audmath.samples() under the hood, which was only introduced in audmath v1.3.0, so we need to require at least that version of audmath.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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see 2 files with indirect coverage changes

[schruefer]

Great, thanks!