Updated swift-argument-parser to 0.0.6

Author: bok-

Package.resolved

@@ -16,7 +16,7 @@ let package = Package(
     ],
 
     dependencies: [
-        .package(url: "https://github.com/apple/swift-argument-parser.git", from: "0.0.5"),
+        .package(url: "https://github.com/apple/swift-argument-parser.git", from: "0.0.6"),
         .package(name: "SwiftPM", url: "https://github.com/apple/swift-package-manager.git", .revision("swift-5.2.3-RELEASE")),
         .package(url: "https://github.com/apple/swift-tools-support-core.git", from: "0.1.3"),
     ],