Merge pull request #124 from massimobio/patch-1

Fix Xcode 12 warning IPHONEOS_DEPLOYMENT_TARGET  is set to 8.0

Author: chrisballinger

Package.swift

@@ -5,7 +5,7 @@ let package = Package(
     name: "KissXML",
     platforms: [
         .macOS(.v10_10),
-        .iOS(.v8),
+        .iOS(.v9),
         .tvOS(.v9),
         .watchOS(.v2)
     ],