chore(cargo): bump hyper-util from 0.1.20 to 0.1.21

Bumps [hyper-util](https://github.com/hyperium/hyper-util) from 0.1.20 to 0.1.21.
- [Release notes](https://github.com/hyperium/hyper-util/releases)
- [Changelog](https://github.com/hyperium/hyper-util/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hyperium/hyper-util/compare/v0.1.20...v0.1.21)

---
updated-dependencies:
- dependency-name: hyper-util
  dependency-version: 0.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -2693,15 +2693,16 @@ dependencies = [
 
 [[package]]
 name = "hyper-util"
-version = "0.1.20"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96547c2556ec9d12fb1578c4eaf448b04993e7fb79cbaad930a656880a6bdfa0"
+checksum = "ddc03d96684f9226b8a787cdb71488417b53ab5ea8fdb1dac946cb9431cc8bff"
 dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
  "http 1.1.0",
  "http-body",
+ "httparse",
  "hyper",
  "libc",
  "pin-project-lite",