Bump hyper from 0.14.19 to 0.14.20

Bumps [hyper](https://github.com/hyperium/hyper) from 0.14.19 to 0.14.20.
- [Release notes](https://github.com/hyperium/hyper/releases)
- [Changelog](https://github.com/hyperium/hyper/blob/v0.14.20/CHANGELOG.md)
- [Commits](hyperium/hyper@v0.14.19...v0.14.20)

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

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

node/metrics/Cargo.toml

@@ -27,7 +27,7 @@ log = "0.4.17"
 assert_cmd = "2.0.4"
 nix = "0.24.1"
 tempfile = "3.2.0"
-hyper = { version = "0.14.19", default-features = false, features = ["http1", "tcp"] }
+hyper = { version = "0.14.20", default-features = false, features = ["http1", "tcp"] }
 tokio = "1.19.2"
 polkadot-test-service = { path = "../test/service", features=["runtime-metrics"]}
 substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }