bpo-45007: Update multissl to openssl 1.1.1l as well (GH-28044)

This was missed while upgrading CI.
(cherry picked from commit d6cb5dd)

Co-authored-by: Łukasz Langa <[email protected]>

Author: miss-islington

Tools/ssl/multissltests.py

@@ -47,7 +47,7 @@
 ]
 
 OPENSSL_RECENT_VERSIONS = [
-    "1.1.1k",
+    "1.1.1l",
     "3.0.0-beta1"
 ]