Modernize test matrix

.github/workflows/swift.yml

@@ -10,8 +10,8 @@ jobs:
   Xcode:
     strategy:
       matrix:
-        xcode_version: ['13.2.1', '13.1', '13.0', '12.5.1', '12.4', '11.7']
-    runs-on: macos-11
+        xcode_version: ['13.3.1', '13.4', '14.0.1', '14.1', '14.2']
+    runs-on: macos-12
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode_version }}.app
     steps:
@@ -22,7 +22,7 @@ jobs:
   Linux:
     strategy:
       matrix:
-        tag: ['5.1', '5.2', '5.3']
+        tag: ['5.1', '5.3', '5.8']
     runs-on: ubuntu-latest
     container:
       image: swift:${{ matrix.tag }}

Package@swift-5.8.swift

@@ -0,0 +1,27 @@
+// swift-tools-version:5.8
+import PackageDescription
+
+#if canImport(Compression)
+let targets: [Target] = [
+    .target(name: "ZIPFoundation"),
+    .testTarget(name: "ZIPFoundationTests", dependencies: ["ZIPFoundation"])
+]
+#else
+let targets: [Target] = [
+    .systemLibrary(name: "CZLib", pkgConfig: "zlib", providers: [.brew(["zlib"]), .apt(["zlib"])]),
+    .target(name: "ZIPFoundation", dependencies: ["CZLib"], cSettings: [.define("_GNU_SOURCE", to: "1")]),
+    .testTarget(name: "ZIPFoundationTests", dependencies: ["ZIPFoundation"])
+]
+#endif
+
+let package = Package(
+    name: "ZIPFoundation",
+    platforms: [
+        .macOS(.v10_11), .iOS(.v9), .tvOS(.v9), .watchOS(.v2)
+    ],
+    products: [
+        .library(name: "ZIPFoundation", targets: ["ZIPFoundation"])
+    ],
+    targets: targets,
+    swiftLanguageVersions: [.v4, .v4_2, .v5]
+)