tick off 5.41.11 release

Author: karenetheridge

Porting/release_schedule.pod

@@ -57,7 +57,7 @@ you should reset the version numbers to the next blead series.
   2025-03-20  5.41.10 ✓       Lukas Mai         User-visible changes to
                                                 correctly functioning
                                                 programs freeze
-  2025-04-20  5.41.11         Karen Etheridge   Full program freeze
+  2025-04-20  5.41.11 ✓       Karen Etheridge   Full program freeze
   2025-05-20  5.42.0          ?                 New perl!
 
 =head1 VICTIMS