build: bump clap from 3.2.19 to 3.2.20 in /fuzz

Bumps [clap](https://github.com/clap-rs/clap) from 3.2.19 to 3.2.20.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/v3.2.20/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.19...v3.2.20)

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

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

fuzz/Cargo.lock

@@ -127,9 +127,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "3.2.19"
+version = "3.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68d43934757334b5c0519ff882e1ab9647ac0258b47c24c4f490d78e42697fd5"
+checksum = "23b71c3ce99b7611011217b366d923f1d0a7e07a92bb2dbf1e84508c673ca3bd"
 dependencies = [
  "atty",
  "bitflags",