chore(deps): update rust crate libfuzzer-sys to v0.4.13

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
libfuzzer-sys	dependencies	patch	0.4.12 → 0.4.13

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Release Notes

rust-fuzz/libfuzzer (libfuzzer-sys)

v0.4.13

Compare Source

Released 2026-06-04.

Changed

• Updated docs for the fuzz_mutator! macro to link to the mutatis
  crate, which is a helpful crate when writing complex
  custom mutators.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.18%. Comparing base (b765a4b) to head (24e6ae3).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #457   +/-   ##
=======================================
  Coverage   82.18%   82.18%           
=======================================
  Files          13       13           
  Lines        5551     5551           
  Branches      312      312           
=======================================
  Hits         4562     4562           
  Misses        986      986           
  Partials        3        3           

Flag	Coverage Δ
macos_latest	82.86% <ø> (ø)
ubuntu_latest	82.97% <ø> (ø)
windows_latest	0.00% <ø> (ø)

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