fix(libafl): restart client after SIGSEGV

[kevin-valerio]

Fixes #149 by updating the LibAFL fork's signal-recursion exit check and adding a SIGSEGV restart regression test.

[Copilot]

Pull request overview

Updates the LibAFL integration to keep fuzzing after a target SIGSEGV by pulling in an updated LibAFL-git-aware revision, and adds a regression example + CI smoke coverage to ensure the launcher restarts the client instead of treating the crash as a crash-handler failure.

Changes:

• Bump LibAFL-git-aware dependency (via Cargo.lock) to include the SIGSEGV/crash-handler recursion fix.
• Add a new sigsegv_restart Go fuzzing example plus a dedicated LibAFL smoke test script.
• Document that disabling stop_all_fuzzers_on_panic keeps fuzzing and restarts the crashing client (including SIGSEGV).

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/gosentry/examples/sigsegv_restart/sigsegv.go	Adds a CGO helper that triggers SIGSEGV for regression testing.
test/gosentry/examples/sigsegv_restart/sigsegv_test.go	Adds a fuzz harness that deterministically triggers SIGSEGV from a seeded input.
test/gosentry/examples/sigsegv_restart/go.mod	Adds a module for the new SIGSEGV restart example.
README.md	Documents continued fuzzing + client restart behavior when stop_all_fuzzers_on_panic=false.
misc/gosentry/USE_LIBAFL.md	Documents client restart behavior after crashes (including SIGSEGV).
misc/gosentry/tests/smoke_use_libafl.sh	Wires the new SIGSEGV restart smoke test into the LibAFL smoke suite.
misc/gosentry/tests/smoke_use_libafl_sigsegv_restart.sh	New smoke test validating crash is saved and the client restarts after SIGSEGV.
golibafl/Cargo.lock	Updates the pinned LibAFL-git-aware git revision containing the fix.
.github/workflows/smoke_use_libafl.yml	Runs the new SIGSEGV restart smoke test in CI.

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