Merge pull request #68574 from nhoad/gc-shard-id

rgw: add support for --shard-id in gc process and gc list commands

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

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

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

diff --cc src/rgw/radosgw-admin/radosgw-admin.cc
Simple merge