build: Bump itoa from 1.0.10 to 1.0.11 in /fuzz

Bumps [itoa](https://github.com/dtolnay/itoa) from 1.0.10 to 1.0.11.
- [Release notes](https://github.com/dtolnay/itoa/releases)
- [Commits](https://github.com/dtolnay/itoa/compare/1.0.10...1.0.11)

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

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

fuzz/Cargo.lock

@@ -452,9 +452,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
+checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
 [[package]]
 name = "jobserver"