[submodule][master] Update submodule sonic-swss to the latest HEAD automatically

[mssonicbld]

Why I did it

src/sonic-swss

* 6d45c50a - (HEAD -> master, origin/master, origin/HEAD) orchagent: query ACL table group type capability instead of hardcoding PARALLEL (#4672) (3 hours ago) [Anant]
* 42811494 - orchagent: Add null check after dynamic_cast in PfcWdOrch (#4520) (4 hours ago) [Uma Ramanathan]
* cbcabdc8 - orchagent: Fix end-iterator dereference in SflowOrch debug log (#4518) (4 hours ago) [Uma Ramanathan]
* 96c6dbce - [stpmgrd]: Fix STPd IPC socket descriptor validation and lifecycle (#4858) (4 hours ago) [hrajagopalan-upscaleai]
* 5dd7faf4 - Fix multi-asic VoQ entries being silently dropped (#4638) (4 hours ago) [HP]
* 656dd791 - [tests]: Remove mirror destination route correctly (#4786) (4 hours ago) [Xichen96]
* 776edb8c - [chore/github]: Standardize GitHub PR description template (#4596) (4 hours ago) [Oleksandr Ivantsiv]
* 4f67835b - [ci] archive failed pytest artifacts per job attempt (#4892) (4 hours ago) [yijingyan2]
* 30966a59 - [nbrmgr]: Preserve failed IPv6 neighbors as incomplete (#4849) (27 hours ago) [Lawrence Lee]
* 8db3f4f9 - Register IPinIP tunnel next hops in NeighOrch (#4646) (33 hours ago) [manamand2020]

How I did it

How to verify it

Description for the changelog

[azure-pipelines]

Azure Pipelines:
There may be pipelines that require an authorized user to comment /azp run to run.

[mssonicbld]

/azp run Azure.sonic-buildimage

[azure-pipelines]

Azure Pipelines:
Successfully started running 1 pipeline(s).

[mssonicbld]

/azp run Azure.sonic-buildimage

[azure-pipelines]

Azure Pipelines:
Successfully started running 1 pipeline(s).