Improvements

Rook v1.15.7 is a patch release limited in scope and focusing on feature additions and bug fixes to the Ceph operator.

• object: Update s5cmd to resolve vulnerabilities (#15178, @TomHellier)
• object: COSI user to be created explicitly instead of automated by the operator (#15144, @BlaineEXE)
• file: Add support for named MDS metadata pool names without the filesystem prefix (#15056, @NotTheEvilOne)
• csi: update to the v3.12.3 Ceph-CSI release (#15058, @Madhu-1)
• rbdmirror: Add a timeout for the RBD import cmd that may hang (#15051, @parth-gr)
• osd: Fix device class label on the OSD deployment (#15066, @parth-gr)
• core: Fix Annotations.Merge to prevent side effects (#15080, @OdedViner)
• rgw: Fix shared pools for zone (#15038, @arttor)