Improvements

Rook v1.12.1 is a patch release limited in scope and focusing on feature additions and bug fixes to the Ceph operator.

• docs: Add note in upgrade guide about cephfs driver's breaking change (#12615, @Rakshith-R)
• osd: Use cp -a command for copying init-containers binary (#12501, @Sheetalpamecha)
• external: added an optional flag for enabling v2 mon port (#12534, @Nikhil-Ladha)
• external: set RequireMsgr2 if v2 port is configured (#12537, @parth-gr)
• multus: Revise kube config/client loading (#12611, @BlaineEXE)
• nfs: Fix null pointer deref in generateSssdSidecarResources() (#12617, @spuiuk)
• external: Create cluster namespace for the external cluster (#12508, @parth-gr)
• object: Update ceph COSI driver image to v0.1.1 (#12562, @thotz)
• object: Do not add objectstore endpoint to zone when sync is disabled (#12560, @polyedre)
• nfs: mount krb5.conf and krb5.keytab in the sssd container (#12517, @spuiuk)
• core: Force delete rook-ceph-exporter pod on a down node (#12575, @sp98)
• rbd: Skip PV during node fencing when PV is not backed by Ceph-CSI (#12563, @subhamkrai)
• build: COSI driver is missing from OLM list (#12592, @subhamkrai)
• ci: add detached mode in tmate (#12579, @subhamkrai)