[submodule] Update sonic-swss submodule pointer (#10209)

Update sonic-swss with the following changes:

29d5d8d Use abort instead of exit in case calling SAI API failure (#2170)
12f980c Fix issue config qos reload causing orchagent aborted via tracking dependencies among QoS tables (#2116)
6e5ed1c [chassis][syncd][sai] Adjusting response timeout during syncd init (#2159)
0a99f54 Try get port operational speed from STATE DB (#2119)
828cccf [crm] Use sai_object_type_get_availability() API to get counters (#2098)
18c73a1 Allow IPv4 link-local nexthops (#1903)

Signed-off-by: Stephen Sun <stephens@nvidia.com>