[submodule] Advance sonic-utilities pointer (#12544)

Update sonic-utilities submodule pointer to include the following:
4a3d49d Fix exception in adding mirror_session when gre_type is absent (#2458)
7e7d05c Update the DBmigrator to support persistent loglevel during warm-upgrade (#2370)
c2841b8 [doc]: Update Command-Reference.md (#2444)
254cafc Event Counters CLI (#2449)
2dab0d0 [techsupport] Adding FRR EVPN dumps (#2442)
3c0aece [show][muxcable] add support for show mux firmware version all (#2441)

Signed-off-by: dprital <[email protected]>

Author: dprital