Update git submodules

* Update helpcontent2 from branch 'master'
  - Update Draw menus and Contents tree (part)
    
    Change-Id: I556a2cafdd66fc425aa67f821c1a5b676ef22c81
    Reviewed-on: https://gerrit.libreoffice.org/77677
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index 1848284..6570689 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 1848284e83e609f092f80c55dce108c22964699f
Subproject commit 6570689918de8fa9185c496808681b4612906164