Update release date

cyderize · cyderize · commit b1da70d7644a · 2024-06-03T09:18:18.000+10:00
diff --git a/MiniZincIDE/CHANGES b/MiniZincIDE/CHANGES
@@ -1,4 +1,4 @@
-2024-05-31
+2024-05-03
   v2.8.5
 -  Update to MiniZinc 2.8.5.
 
