build: suppress CS0618

Author: jakubmisek

src/Peachpie.Runtime/PhpCallback.cs

@@ -24,7 +24,9 @@ public partial interface IPhpCallable
         /// <summary>
         /// Invokes the object with given arguments.
         /// </summary>
+#pragma warning disable CS0618 // Type or member is obsolete
         PhpValue Invoke(Context ctx, params ReadOnlySpan<PhpValue> arguments) => Invoke(ctx, arguments.ToArray());
+#pragma warning restore CS0618 // Type or member is obsolete
 
         /// <summary>
         /// Invokes the object with given arguments.