Bump hyper from 0.14.14 to 0.14.15

Bumps [hyper](https://github.com/hyperium/hyper) from 0.14.14 to 0.14.15.
- [Release notes](https://github.com/hyperium/hyper/releases)
- [Changelog](https://github.com/hyperium/hyper/blob/master/CHANGELOG.md)
- [Commits](hyperium/hyper@v0.14.14...v0.14.15)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -15,7 +15,7 @@ version = "0.3.0"
 clap = "2.33.3"
 futures = "0.3.17"
 tokio = { version = "1.8.1", features = ["full"] }
-hyper = { version = "0.14.14", features = ["stream"] }
+hyper = { version = "0.14.15", features = ["stream"] }
 hyper_cgi = "0.2.1"
 hyper-staticfile = "0.8.0"
 hyper-tls = "0.5.0"