Update git submodules

* Update helpcontent2 from branch 'master'
  - Default Add value for Optimal Column Width is 2 mm, not 0.1 in
    
    See ScCellShell::Execute implementation [1] which passes STD_EXTRA_WIDTH
    (defined as 113 twips = 2 mm) to the dialog as the default value.
    
    The text here (that was 0.1 in) is translated to other languages (incl.
    those using metric units) verbatim (e.g. Russian translation); or if a
    translation team would want to convert to metric, there is no indication
    that the 0.1 in is just an approximation of an exact metric value.
    
    [1] sc/source/ui/view/cellsh3.cxx:693
    
    Change-Id: I1710588ee40840d85eeb89aaeee135a8aa0a942f
    Reviewed-on: https://gerrit.libreoffice.org/67936
    Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
    

helpcontent2 @ f824e522

-Subproject commit c3509fb7e6675a38560c7e2764b21861d1e23362
+Subproject commit f824e52218d3832088a3b1e5ef5c60f64e763422