Merge pull request #51180 from xxhdx1985126/wip-59511

crimson/osd/snaptrim_event: get SnapSetContext from head obc

Reviewed-by: Matan Breizman <mbreizma@redhat.com>
Reviewed-by: Sam Just <sjust@redhat.com>
Reviewed-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

diff --cc src/crimson/osd/osd_operations/snaptrim_event.cc
Simple merge