Update git submodules

* Update dictionaries from branch 'master'
  - Updated Breton spelling dictionary to version 0.16
    
    Change-Id: Id63e2340c97f7071480ab73ebd46611ba9a8929c
    Reviewed-on: https://gerrit.libreoffice.org/65790Reviewed-by: Andras Timar <andras.timar@collabora.com>
Tested-by: Andras Timar <andras.timar@collabora.com>
    

dictionaries @ aff69d55

-Subproject commit fea4ea689cd27d4c0bd981fdc01225d3bfacfc2d
+Subproject commit aff69d55780b6a49d0497d07352da0490399a19a