tick off 5.41.10 release; add Karen Etheridge for 5.41.11

Author: mauke

Porting/release_schedule.pod

@@ -52,10 +52,10 @@ you should reset the version numbers to the next blead series.
   2024-12-20  5.41.7  ✓       Max Maischein
   2025-01-20  5.41.8  ✓       Steve Hay
   2025-02-20  5.41.9  ✓       Richard Leach     Contentious changes freeze
-  2025-03-20  5.41.10         Lukas Mai         User-visible changes to
+  2025-03-20  5.41.10 ✓       Lukas Mai         User-visible changes to
                                                 correctly functioning
                                                 programs freeze
-  2025-04-20  5.41.11         ?                 Full program freeze
+  2025-04-20  5.41.11         Karen Etheridge   Full program freeze
   2025-05-20  5.42.0          ?                 New perl!
 
 =head1 VICTIMS