Improvements

Rook v1.8.5 is a patch release limited in scope and focusing on small feature additions and bug fixes to the Ceph operator.

• core: Operator was crashing when the mon endpoints were updated (#9715, @leseb)
• csi: Bump registar image to v2.5.0 (#9702, @sathieu)
• osd: Add namespace in vault client (#9720, @leseb)
• doc: Add documentation for deploying the csi-addons (#9624, @yati1998)
• object: Update object pool properties during reconcile (#9696, @travisn)
• csi: Create separate csi users in external cluster configuration (#9703, @parth-gr)