Bump expected turbo version

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QW8VaDtn3cMdQowPSh1xGG

Author: gnutix

src/Turbo/TurboExtensionEnabler.php

@@ -33,7 +33,7 @@
 final class TurboExtensionEnabler
 {
 
-	public const EXPECTED_EXTENSION_VERSION = '28c29b8';
+	public const EXPECTED_EXTENSION_VERSION = '1a672b3';
 
 	private static bool $active = false;