chore(deps): Update Rust crate magic-sys to v0.4.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
magic-sys	dependencies	patch	0.4.1 -> 0.4.2

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Release Notes

robo9k/rust-magic-sys (magic-sys)

v0.4.2

Compare Source

Other

• Update unstable doc_cfg syntax for nightly rustdoc on docs.rs

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.86%. Comparing base (cbb5603) to head (36c4320).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #420   +/-   ##
=======================================
  Coverage   47.86%   47.86%           
=======================================
  Files           2        2           
  Lines         491      491           
  Branches      491      491           
=======================================
  Hits          235      235           
  Misses        255      255           
  Partials        1        1           

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