[submodule] Update submodule sonic-swss to the latest HEAD automatically (#22880)

#### Why I did it
src/sonic-swss
```
* 91bbfb2c - (HEAD -> 202505, origin/202505) [muxorch] Catch error when checking active state of missing neighbor (#3689) (10 hours ago) [mssonicbld]
* 119bd9d2 - [SRv6] add MySID counters support (#3684) (19 hours ago) [mssonicbld]
* 9c860b1a - [swss]: IcmpOrch to support ICMP session offload to ASIC (#3685) (19 hours ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld