Update gens/preparecodvandbaf to 2.0.1

[alkc]

PR checklist

Updates the module for gens input generation script from 2.0.0 to 2.0.1, adding better error handling for malformed sample fields and non-diploid GTs

• This comment contains a description of changes (with reason).
• If you've fixed a bug or added code that should be tested, add tests!
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• If necessary, include test data in your PR.
• Remove all TODO statements.
• Broadcast software version numbers to topic: versions - See version_topics
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    • nf-core subworkflows test <SUBWORKFLOW> --profile singularity
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[Jakob37]

Looks great!