Update SwiftThemeKit version

Author: Charlyk

Package.swift

@@ -18,7 +18,7 @@ let package = Package(
   ],
   dependencies: [
     .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.3.0"),
-    .package(url: "https://github.com/Charlyk/swift-theme-kit.git", from: "1.2.3"),
+    .package(url: "https://github.com/Charlyk/swift-theme-kit.git", from: "1.2.4"),
     .package(url: "https://github.com/hmlongco/Factory.git", from: "2.5.3"),
     .package(url: "https://github.com/simibac/ConfettiSwiftUI.git", from: "2.0.3"),
   ],