refactor: Run cargo clippy --fix

[pan93412]

clippy version: clippy 0.1.66 (11ebe651 2022-11-01)

Standards checklist:

• The PR title is descriptive.
• The code compiles (cargo build)
• The code passes rustfmt (cargo fmt)
• The code passes clippy (cargo clippy)
• The code passes tests (cargo test)
• Optional: I have tested the code myself
  • I also tested that Topgrade skips the step where needed

If you developed a feature or a bug fix for someone else and you do not have the
means to test it, please tag this person here.

[codecov]

Codecov Report

Merging #113 (1b3a802) into master (9cd155f) will decrease coverage by 0.17%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master    #113      +/-   ##
=========================================
- Coverage    3.50%   3.32%   -0.18%     
=========================================
  Files          27      27              
  Lines        3141    3304     +163     
=========================================
  Hits          110     110              
- Misses       3031    3194     +163     

Impacted Files	Coverage Δ
src/config.rs	0.00% <0.00%> (ø)
src/main.rs	0.41% <0.00%> (-0.02%)	⬇️
src/steps/containers.rs	0.00% <0.00%> (ø)
src/steps/emacs.rs	0.00% <0.00%> (ø)
src/steps/generic.rs	0.00% <0.00%> (ø)
src/steps/git.rs	0.00% <0.00%> (ø)
src/steps/kakoune.rs	0.00% <0.00%> (ø)
src/steps/node.rs	0.00% <0.00%> (ø)
src/steps/os/archlinux.rs	0.00% <0.00%> (ø)
src/steps/os/linux.rs	22.29% <0.00%> (-1.01%)	⬇️
... and 10 more

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