update peddy container

[ramprasadn]

PR checklist

Peddy image was built with a latest version of numpy, which didn't have some of the functions used by peddy. This PR addresses that by pinning numpy to an older version.

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• Ensure that the test works with either Docker / Singularity. Conda CI tests can be quite flaky:
  • For modules:
    • nf-core modules test <MODULE> --profile docker
    • nf-core modules test <MODULE> --profile singularity
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  • For subworkflows:
    • nf-core subworkflows test <SUBWORKFLOW> --profile docker
    • nf-core subworkflows test <SUBWORKFLOW> --profile singularity
    • nf-core subworkflows test <SUBWORKFLOW> --profile conda

[ramprasadn]

@nf-core-bot fix linting

[fellen31]

Could you describe why this change is needed in the PR description?