Update comment, GENERICS_CONSTREF is only for FPC <= 3.2.2

Author: michaliskambi

code-samples/generics_sorting.dpr

@@ -6,7 +6,7 @@
   should have "constref" parameter, not "const".
   This was the case of FPC<= 3.2.0, FPC changed it in
   https://gitlab.com/freepascal.org/fpc/source/-/commit/693491048bf2c6f9122a0d8b044ad0e55382354d .
-  It is also applied to FPC fixes branch 3.2.3. }
+  It is also applied to FPC fixes branch 3.2.3 and later 3.2.4(rc1). }
 {$ifdef VER3_0} {$define GENERICS_CONSTREF} {$endif}
 {$ifdef VER3_2_0} {$define GENERICS_CONSTREF} {$endif}
 {$ifdef VER3_2_2} {$define GENERICS_CONSTREF} {$endif}