Move Package to Swift 5.9, Add 5.8 Version (#3767)

### Goals :soccer:
This PR moves the Package.swift to Swift 5.9 and adds an explicit 5.8
version.

.github/workflows/ci.yml

@@ -216,8 +216,11 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - xcode: "Xcode_14.3"
+          - xcode: "Xcode_15.0"
             runsOn: firebreak
+            name: "macOS 13, SPM 5.9.0 Test"
+          - xcode: "Xcode_14.3"
+            runsOn: macOS-13
             name: "macOS 13, SPM 5.8.0 Test"
           - xcode: "Xcode_14.2"
             runsOn: macOS-12

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.8
+// swift-tools-version:5.9
 //
 //  Package.swift
 //

Package@swift-5.8.swift

@@ -0,0 +1,48 @@
+// swift-tools-version:5.8
+//
+//  Package.swift
+//
+//  Copyright (c) 2022 Alamofire Software Foundation (http://alamofire.org/)
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+import PackageDescription
+
+let package = Package(name: "Alamofire",
+                      platforms: [.macOS(.v10_13),
+                                  .iOS(.v11),
+                                  .tvOS(.v11),
+                                  .watchOS(.v4)],
+                      products: [.library(name: "Alamofire",
+                                          targets: ["Alamofire"])],
+                      targets: [.target(name: "Alamofire",
+                                        path: "Source",
+                                        exclude: ["Info.plist"],
+                                        linkerSettings: [.linkedFramework("CFNetwork",
+                                                                          .when(platforms: [.iOS,
+                                                                                            .macOS,
+                                                                                            .tvOS,
+                                                                                            .watchOS]))]),
+                                .testTarget(name: "AlamofireTests",
+                                            dependencies: ["Alamofire"],
+                                            path: "Tests",
+                                            exclude: ["Info.plist", "Test Plans"],
+                                            resources: [.process("Resources")])],
+                      swiftLanguageVersions: [.v5])