Updated the copyright years

Chuck Toporek · Chuck Toporek · commit e2d22b7279cc · 2024-07-18T15:38:08.000-07:00
diff --git a/Documentation/StyleGuide.md b/Documentation/StyleGuide.md
@@ -3,7 +3,7 @@
 <!--
 This source file is part of the Swift.org open source project
 
-Copyright (c) 2023 Apple Inc. and the Swift project authors
+Copyright (c) 2023-2024 Apple Inc. and the Swift project authors
 Licensed under Apache License v2.0 with Runtime Library Exception
 
 See https://swift.org/LICENSE.txt for license information
