Update to support swift 5.1 and async-http-client 1.0.0-alpha.4

Author: Andrea-Scuderi

Package.resolved

@@ -15,9 +15,8 @@ let package = Package(
     dependencies: [
         // Dependencies declare other packages that this package depends on.
         //.package(path: "../aws-lambda-swift-sprinter-core/"),
-        //.package(url: "https://github.com/swift-sprinter/aws-lambda-swift-sprinter-core", from: "1.0.0-alpha.1"),
-        .package(url: "https://github.com/swift-sprinter/aws-lambda-swift-sprinter-core", .branch("feature/swift-5.1")),
-        .package(url: "https://github.com/swift-server/async-http-client.git", from: "1.0.0-alpha.3"),
+        .package(url: "https://github.com/swift-sprinter/aws-lambda-swift-sprinter-core", from: "1.0.0-alpha.2"),
+        .package(url: "https://github.com/swift-server/async-http-client.git", from: "1.0.0-alpha.4"),
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.

Package.swift

@@ -1,7 +1,7 @@
 # aws-lambda-swift-sprinter-nio-plugin
 
 
-[![Swift 5](https://img.shields.io/badge/Swift-5.0-blue.svg)](https://swift.org/download/) [![Swift 5.1](https://img.shields.io/badge/Swift-5.1-blue.svg)](https://swift.org/download/) ![](https://img.shields.io/badge/version-1.0.0--alpha.1-red)
+[![Swift 5](https://img.shields.io/badge/Swift-5.0-blue.svg)](https://swift.org/download/) [![Swift 5.1](https://img.shields.io/badge/Swift-5.1-blue.svg)](https://swift.org/download/) ![](https://img.shields.io/badge/version-1.0.0--alpha.2-red)
 
 The project implements an HTTPS client plugin for the [LambdaSwiftSprinter](https://github.com/swift-sprinter/aws-lambda-swift-sprinter-core) framework.