Update git submodules

* Update helpcontent2 from branch 'master'
  - Name tag updates in links
    
    Change-Id: I88cdf6ea514ba98d45d90d59bc170f4c59938df6
    Reviewed-on: https://gerrit.libreoffice.org/68382
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index 9b8bbbe..4589993 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 9b8bbbed8d995c93675100e8b5793ee84c89d2df
Subproject commit 45899930d0fc91724fba403a2429b9863d32247c