Merge pull request #55503 from smanjara/wip-x-amz-replicated-at

rgw/multisite: add x-rgw-replicated-at header to replicated objects

Reviewed-by: Casey Bodley <cbodley@redhat.com>

diff --cc PendingReleaseNotes
Simple merge

diff --cc src/rgw/driver/rados/rgw_rados.cc
Simple merge

diff --cc src/rgw/rgw_admin.cc
Simple merge

diff --cc src/rgw/rgw_common.h
Simple merge

diff --cc src/rgw/rgw_rest_s3.cc
Simple merge