Require hummingbird 2.14.0 (#105)

Author: adam-fowler

Package.swift

@@ -15,7 +15,7 @@ let package = Package(
         .library(name: "HummingbirdWSTesting", targets: ["HummingbirdWSTesting"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/hummingbird-project/hummingbird.git", from: "2.12.0"),
+        .package(url: "https://github.com/hummingbird-project/hummingbird.git", from: "2.14.0"),
         .package(url: "https://github.com/hummingbird-project/swift-websocket.git", from: "1.2.0"),
         .package(url: "https://github.com/apple/swift-nio-extras.git", from: "1.22.0"),
         .package(url: "https://github.com/apple/swift-nio-ssl.git", from: "2.5.0"),