[sonic-utilities] submodule update (#7608)

[config]Static routes to config_db (#1534)
[DPB]: Shut down interface before dynamic port breakout (#1303)
[vlan] remove dhcp-relay as dhcp-relay commands will come as a plugin (#1378)
Add 'default' option for sFlow. (#1606)
[Command-Reference.md] Document new SNMP show and config commands (#1600)

Signed-off-by: Shlomi Bitton <shlomibi@nvidia.com>