[202205][swss] advance submodule head

swss:
* a3bfd96 2022-06-18 | Enhance mock test for dynamic buffer manager for port removing and qos reload flows (sonic-net#2262) (HEAD -> 202205, github/202205) [Stephen Sun]
* b17d6c0 2022-05-28 | Support mock_test infra for dynamic buffer manager and fix issues found during mock test (sonic-net#2234) [Stephen Sun]
* 3fb23a1 2022-06-16 | [aclorch] Fix and simplify DTel watchlist tables and entries (sonic-net#2155) [Mickey Spiegel]
* 9ace643 2022-06-16 | [intfmgr]: Set proxy_arp kernel param (sonic-net#2334) [Lawrence Lee]
* 013609a 2022-06-14 | [crmorch] Prevent exceededLogCounter from resetting when low and high values are equal (sonic-net#2327) [Alexander Allen]
* 83a1306 2022-06-13 | Fix key generation in removeDecapTunnel (sonic-net#2322) [Myron Sosyak]
* 3d018ad 2022-06-15 | Apply `DSCP_TO_TC_MAP` from `PORT_QOS_MAP|global` to switch level (sonic-net#2314) [bingwang-ms]

Signed-off-by: Ying Xie <ying.xie@microsoft.com>