Update registry1.dso.mil/ironbank/opensource/ceph/ceph Docker tag to v18.2.0

This MR contains the following updates:

Package	Type	Update	Change
registry1.dso.mil/ironbank/opensource/ceph/ceph	ironbank-base	minor	v18.1.2 -> v18.2.0
registry1.dso.mil/ironbank/opensource/ceph/ceph	final	minor	v18.1.2 -> v18.2.0

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