fixed rc.5 breaks in hummingbird example (#6)

Author: sliemeobn

Examples/HummingbirdDemo/Package.swift

@@ -10,8 +10,8 @@ let package = Package(
         .executable(name: "App", targets: ["App"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/hummingbird-project/hummingbird.git", from: "2.0.0-rc.1"),
-        .package(url: "https://github.com/hummingbird-community/hummingbird-elementary.git", from: "0.1.0-rc.1"),
+        .package(url: "https://github.com/hummingbird-project/hummingbird.git", from: "2.0.0-rc.5"),
+        .package(url: "https://github.com/hummingbird-community/hummingbird-elementary.git", from: "0.2.0-rc.1"),
         .package(path: "../../"),
         .package(url: "https://github.com/apple/swift-async-algorithms", from: "1.0.0"),
         .package(url: "https://github.com/swift-server/swift-service-lifecycle.git", from: "2.0.0"),

Examples/HummingbirdDemo/Sources/App/Routes.swift

@@ -11,14 +11,13 @@ func addRoutes(to router: Router<some RequestContext>) {
         }
     }
 
-    router.get("/time") { _, context in
+    router.get("/time") { _, _ in
         Response(
             status: .ok,
             headers: [.contentType: "text/event-stream"],
             body: .init { writer in
                 while true {
-                    try await writer.write(context.allocator.buffer(
-                        string: "data: \(TimeHeading().render())\n\n"))
+                    try await writer.write(ByteBuffer(string: "data: \(TimeHeading().render())\n\n"))
                     try await Task.sleep(for: .seconds(1))
                 }
             }