Update git submodules

* Update helpcontent2 from branch 'master'
  to a50530fe4e224b01f37cd9c959d3bded32b8bd6a
  - tdf#140395 remove "blinking" control from font effects
    
       The "blinking" property was removed from the UI
       (see tdf#132373). This patch removes the property
       from the help page, along with its bookmarks.
    
    Change-Id: I3b1317e7664e3bcd1813a0d0882eff109ede95fd
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/112293
    Reviewed-by: Seth Chaiklin <sdc.blanco@youmail.dk>
    Tested-by: Jenkins
    
diff --git a/helpcontent2 b/helpcontent2
index fd581dc..a50530f 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit fd581dcbffc52f43ce8dfa5b9a72a78d042fc5e3
Subproject commit a50530fe4e224b01f37cd9c959d3bded32b8bd6a