doc: showcases: fixed release date in recently released list

Author: adamgeorge309

showcases/index.rst

@@ -18,8 +18,8 @@ the simulations (NED, ini, and other files) and the web pages are in the
 
 Latest changes:
 
-- :doc:`quic/linksharing/doc/index` added (2024-02-26)
-- :doc:`emulation/mininet/doc/index` added (2024-02-26)
+- :doc:`quic/linksharing/doc/index` added (2026-02-26)
+- :doc:`emulation/mininet/doc/index` added (2026-02-26)
 - :doc:`tsn/trafficshaping/underthehood/doc/index` updated (2023-07-28)
 - :doc:`tsn/trafficshaping/cbsandtas/doc/index` released (2023-07-28)
 - :doc:`tsn/trafficshaping/cbsandats/doc/index` updated (2023-07-28)