Remove biopython from dependencies

[d33bs]

Description

Biopython ended up in the Almanack dependencies by accident. This PR removes it.

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• Content additions or updates (adds or updates content)
• Bug fix (fixes an issue).
• Enhancement (adds functionality).
• Breaking change (these changes would cause existing functionality to not work as expected).

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[d33bs]

Thanks @gwaybio ! Merging this in.