[submodule][202405] Update submodule sonic-swss to the latest HEAD automatically (sonic-net#1209)

#### Why I did it
src/sonic-swss
```
* 788293d - (HEAD -> 202405, origin/202405) Merge pull request sonic-net#86 from mssonicbld/sonicbld/202405-merge (21 hours ago) [mssonicbld]
* fa4e7bf - Merge branch '202405' of https://github.com/sonic-net/sonic-swss into 202405 (23 hours ago) [Sonic Automation]
* 6785d66 - Update swss pipeline to use ubuntu 22.04 agent pool (sonic-net#3678) (2 days ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld