[sonic-swss] Update submodule (#5964)

Update the sonic-swss submodule. The following are the commits in the submodule.

[dvs] Re-add runcmd_async command
5ba548c

[dvs] Re-add copy_file method to DVS
86e1171

Add a check for warm-restart, and do a clear only when warm-restart is enable.
fcb6c9d

[Routeorch] Fix next hop group reference count in bulk operation
7a92100

[orchagent][port] In case of successful port creation set log level to INFO
fea7ade

Copp Manager Changes
7b76d2e

[orchagent] Arm 32-bit arch compilation warning Fixes
bed7970

Revert: swss: flush g_asicState after each event is done #570
b9084a7

[dvs] Clean-up conftest.py
d6e15e9