fix(deps): update rust crate libfuzzer-sys to v0.4.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
libfuzzer-sys	dependencies	patch	0.4.7 -> 0.4.8

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Release Notes

rust-fuzz/libfuzzer (libfuzzer-sys)

v0.4.8

Compare Source

Released 2024-11-07.

Added

• Bindings to LLVMFuzzerCustomCrossOver through the fuzz_crossover
  macro. See the example_crossover directory in this crate's repo for a
  complete example.

Changed

• Updated to libFuzzer commit ab51eccf88f5321e7c60591c5546b254b6afab99
  (release/19.x).

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[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/timeout/timeout (fails in this run but passes in the 'main' branch)