Update hyper requirement from 0.14.12 to 1.2.0

Updates the requirements on [hyper](https://github.com/hyperium/hyper) to permit the latest version.
- [Release notes](https://github.com/hyperium/hyper/releases)
- [Changelog](https://github.com/hyperium/hyper/blob/master/CHANGELOG.md)
- [Commits](hyperium/hyper@v0.14.12...v1.2.0)

---
updated-dependencies:
- dependency-name: hyper
  dependency-type: direct:production
...

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

gotham/Cargo.toml

@@ -36,7 +36,7 @@ bytes = "1.0"
 cookie = "0.15"
 futures-util = "0.3.14"
 httpdate = "1.0"
-hyper = { version = "0.14.12", features = ["http1", "runtime", "server", "stream"] }
+hyper = { version = "1.2.0", features = ["http1", "runtime", "server", "stream"] }
 linked-hash-map = { version = "0.5.6", optional = true }
 log = "0.4"
 mime = "0.3.15"