ci: publish musl wheels for Linux

[mkniewallner]

Closes #977.

PR Checklist

• A description of the changes is added to the description of this PR.
• If there is a related issue, make sure it is linked to this PR.
• If you've fixed a bug or added code that should be tested, add tests!
• If you've added or modified a feature, documentation in docs is updated

Description of changes

Publish wheels for musl so that users on alpine can use the library without building from source.

I was able to test this on aarch64 with macOS ARM by running a dry-run release, then extracting the wheel into a Docker container using python:alpine:

$ unzip wheels-linux-aarch64-musllinux_1_1-3.13.zip \
    && docker run --workdir /app --volume .:/app python:3.9-alpine \
    sh -c 'pip install deptry-0.0.1-cp39-abi3-musllinux_1_1_aarch64.whl && deptry .'
[...]
Found 70 dependency issues.

For more information, see the documentation: https://deptry.com/

I don't have access to an x64 system right now, but I trust that it should also work just fine.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.0%. Comparing base (5fc0390) to head (63790a5).
Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   93.0%   93.0%           
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  Files         37      37           
  Lines        994     994           
  Branches      98      98           
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  Hits         925     925           
  Misses        55      55           
  Partials      14      14           

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