build: Bump cc from 1.0.79 to 1.0.81 in /fuzz

Bumps [cc](https://github.com/rust-lang/cc-rs) from 1.0.79 to 1.0.81.
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Commits](https://github.com/rust-lang/cc-rs/compare/1.0.79...1.0.81)

---
updated-dependencies:
- dependency-name: cc
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

fuzz/Cargo.lock

@@ -136,11 +136,12 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "cc"
-version = "1.0.79"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
+checksum = "6c6b2562119bf28c3439f7f02db99faf0aa1a8cdfe5772a2ee155d32227239f0"
 dependencies = [
  "jobserver",
+ "libc",
 ]
 
 [[package]]