Replace placeholder of Module::CoreList release date for 5.43.1

Author: thibaultduponchelle

dist/Module-CoreList/lib/Module/CoreList.pm

@@ -443,7 +443,7 @@ sub changes_between {
     5.041013 => '2025-05-28',
     5.042000 => '2025-07-02',
     5.043000 => '2025-07-03',
-    5.043001 => '????-??-??',
+    5.043001 => '2025-07-20',
   );
 
 for my $version ( sort { $a <=> $b } keys %released ) {