Fix Program.cs to use context.WriteLine for version output

Co-authored-by: Malcolmnixon <1863707+Malcolmnixon@users.noreply.github.com>

Author: Copilot

src/DemaConsulting.BuildMark/Program.cs

@@ -92,7 +92,7 @@ public static void Run(Context context)
         // Priority 1: Version query
         if (context.Version)
         {
-            Console.WriteLine(Version);
+            context.WriteLine(Version);
             return;
         }