[submodule] Advance sonic-utilities pointer

Update sonic-utilities submodule pointer to include the following:
* ca9a020 [generate_dump] [Mellanox] Fix the duplicate dfw dump collection problem by adding symlinks ([sonic-net#2536](sonic-net/sonic-utilities#2536))
* 92c7001 [config] Add check in config interface ip command to block if the interface is portchannel member ([sonic-net#2539](sonic-net/sonic-utilities#2539))
* e8130f5 [system-health] Improve code structure of system health CLIs ([sonic-net#2453](sonic-net/sonic-utilities#2453))
* 00c01b3 Transceiver eeprom dom CLI modification to show output from TRANSCEIVER_DOM_THRESHOLD table ([sonic-net#2535](sonic-net/sonic-utilities#2535))
* 42f51c2 sonic-utilities: Update config reload() to verify formatting of an input file ([sonic-net#2529](sonic-net/sonic-utilities#2529))
* a5e1e2b [GCU] Add RemoveCreateOnlyDependency Validator/Generator ([sonic-net#2500](sonic-net/sonic-utilities#2500))
* 6411b52 [QoS] Introduce delay to the qos reload flow ([sonic-net#2503](sonic-net/sonic-utilities#2503))
* fce7ec3 Use github code scanning instead of LGTM ([sonic-net#2530](sonic-net/sonic-utilities#2530))
* 91bd6de Change show kube command default value of insecure key to True ([sonic-net#2517](sonic-net/sonic-utilities#2517))
* c44c584 Add db_migrator_constants.py script to setup.py ([sonic-net#2534](sonic-net/sonic-utilities#2534))
* 6a3238e [drop counters] Fix CLI script for unconfigured PGs ([sonic-net#2518](sonic-net/sonic-utilities#2518))
* 263810b Update vrf add, del commands for duplicate/non-existing VRFs ([sonic-net#2467](sonic-net/sonic-utilities#2467))
* addae73 Port 202012 DB migration changes to newer branches ([sonic-net#2515](sonic-net/sonic-utilities#2515))
* 2af8cfa [VXLAN]Fixing traceback in show remotemac when mac moves during command execution ([sonic-net#2506](sonic-net/sonic-utilities#2506))

Signed-off-by: dprital <drorp@nvidia.com>