Updating mirror so master mirrors 2.4.x

Signed-off-by: Emilio Cuesta <emiliocuesta@eprosima.com>

Author: emiliocuestaf

.github/workflows/mirror.yml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         dest_branch:
-          - '2.3.x'
+          - '2.4.x'
           - '2.x'
     steps:
     - name: Mirror action step