[submodule] Update submodule sonic-swss to the latest HEAD automatically (#16158)

#### Why I did it
src/sonic-swss
```
* 6b0c8c5c - (HEAD -> 202305, origin/202305) [muxorch] set mux state to init upon warm reboot (#2834) (18 hours ago) [Nikola Dancejic]
* bc9bde94 - [ASAN] Fix Indirect Mem Leaks in Orchagent (#2869) (24 hours ago) [Vivek]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld