Update git submodules

* Update helpcontent2 from branch 'master'
  - Fix typo
    
    Change-Id: I064146b36884740fc90b889ea92758a10782b5dd
    Reviewed-on: https://gerrit.libreoffice.org/69823
    Tested-by: Jenkins
Reviewed-by: Andras Timar <andras.timar@collabora.com>
    

helpcontent2 @ 06d97c85

-Subproject commit ca2a6bf2c3c59d106f1c6ad432eab21f696c23fc
+Subproject commit 06d97c85e4a2780f15fd70b8b0b7384001a695c0