bump MetaPhlAn to 4.1.1

[harper357]

PR checklist

This PR bumps the version of MetaPhlAn to 4.1.1 . There are currently no tests with this module, so I have not run the suggested docker test.

• This comment contains a description of changes (with reason).
• Use BioConda and BioContainers if possible to fulfil software requirements.
• 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
    • nf-core modules test <MODULE> --profile conda
  • For subworkflows:
    • nf-core subworkflows test <SUBWORKFLOW> --profile docker
    • nf-core subworkflows test <SUBWORKFLOW> --profile singularity
    • nf-core subworkflows test <SUBWORKFLOW> --profile conda

[jfy133]

@harper357 so you don't have to wait for approval each time, if you can go to #github-invitations on the nf-core slack we can add you to the Github organisation and have tests run straight away :)

[SPPearce]

There are tests, they are just written in pytest, the older testing framework.
They could do with moving over, for instance using the nf-core modules create metaphlan/metaphlan --migrate-pytest command.

[SPPearce]

Oh, hold on, @LilyAnderssonLee is working on nf-test in #6139, including bumping the versions, so I'm going to close this one.