chore(deps): update dependency apple/swift-syntax to v600 (#18)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Package.swift

@@ -20,7 +20,7 @@ let package = Package(
     ],
     dependencies: [
         // Depend on the Swift 5.9 release of SwiftSyntax
-        .package(url: "https://github.com/apple/swift-syntax.git", from: "510.0.3"),
+        .package(url: "https://github.com/apple/swift-syntax.git", from: "600.0.0"),
         .package(url: "https://github.com/pointfreeco/swift-macro-testing", from: "0.5.2"),
         .package(url: "https://github.com/vadymmarkov/Fakery", from: "5.1.0")
     ],