Fix manifest

Author: nuclearace

Package.swift

@@ -8,7 +8,7 @@ let package = Package(
         .library(name: "SocketIO", targets: ["SocketIO"])
     ],
     dependencies: [
-        .package(url: "https://github.com/nuclearace/Starscream", from: .upToNextMajor(from: "8.0.0")),
+        .package(url: "https://github.com/nuclearace/Starscream", .upToNextMajor(from: "8.0.0")),
     ],
     targets: [
         .target(name: "SocketIO", dependencies: ["StarscreamSocketIO"], exclude: ["Sources/Starscream"])