feat: add support for chimera linux

[nekopsykose]

since it also uses apk the update/upgrade is identical to alpine/wolfi

Standards checklist:

• [x] The PR title is descriptive.
• [x] I have read CONTRIBUTING.md
• [x] The code compiles (cargo build)
• [x] The code passes rustfmt (cargo fmt)
• [x] The code passes clippy (cargo clippy)
• [x] The code passes tests (cargo test)
• [x] Optional: I have tested the code myself

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 12.50000% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 6.90%. Comparing base (32add8f) to head (6b5815a). Report is 3 commits behind head on main.

Files	Patch %	Lines
src/steps/os/linux.rs	12.50%	7 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #808 +/- ## ======================================== + Coverage 6.60% 6.90% +0.29% ======================================== Files 37 37 Lines 12199 11692 -507 ======================================== + Hits 806 807 +1 + Misses 11393 10885 -508 ```

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