Add support for watchOS in Package manifest

Author: Jeehut

Package.swift

@@ -4,7 +4,7 @@ import PackageDescription
 let package = Package(
     name: "FreemiumKit",
     defaultLocalization: "en",
-    platforms: [.iOS(.v15), .macOS(.v12), .tvOS(.v15), .visionOS(.v1)],
+    platforms: [.iOS(.v15), .macOS(.v12), .tvOS(.v15), .visionOS(.v1), .watchOS(.v8)],
     products: [.library(name: "FreemiumKit", targets: ["FreemiumKit"])],
     targets: [
       .target(name: "FreemiumKit", dependencies: ["FreemiumKitSDK"], resources: [.process("PrivacyInfo.xcprivacy")]),