Update dependency apple/swift-system to from: "1.6.3"

Author: renovate[bot]

_Packages/Package.swift

@@ -12,7 +12,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-collections", from: "1.2.1"),
         .package(url: "https://github.com/apple/swift-crypto", from: "3.15.0"),
         .package(url: "https://github.com/apple/swift-numerics", from: "1.1.0"),
-        .package(url: "https://github.com/apple/swift-system", from: "1.6.2"),
+        .package(url: "https://github.com/apple/swift-system", from: "1.6.3"),
     ],
     targets: [
         .target(