Release udisks2 2.8.1-4co6

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>

debian/changelog

+udisks2 (2.8.1-4co6) apertis; urgency=medium
+
+  * Re-enable libblockdev-crypto. This won't re-introduce warnings in the logs
+    since the needed libraries will be installed on the images since we need
+    the crypto backend for encrypted offline updates in apertis-update-manager.
+
+ -- Frédéric Danis <frederic.danis@collabora.com>  Tue, 25 May 2020 12:10:50 +0200
+
 udisks2 (2.8.1-4co5) apertis; urgency=medium
 
   [ Corentin Noël ]