build: bump ryu from 1.0.6 to 1.0.9 in /fuzz

Bumps [ryu](https://github.com/dtolnay/ryu) from 1.0.6 to 1.0.9.
- [Release notes](https://github.com/dtolnay/ryu/releases)
- [Commits](https://github.com/dtolnay/ryu/compare/1.0.6...1.0.9)

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

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

fuzz/Cargo.lock

@@ -500,9 +500,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.6"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c9613b5a66ab9ba26415184cfc41156594925a9cf3a2057e57f31ff145f6568"
+checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
 
 [[package]]
 name = "seccompiler"