[submodule][202503] Update submodule sonic-swss to the latest HEAD automatically (sonic-net#1547)

#### Why I did it
src/sonic-swss
```
* 12d2e05e - (HEAD -> 202503, origin/202503) Merge pull request sonic-net#140 from Azure/revert-101-cherry_pick_3698 (3 hours ago) [bingwang-ms]
* 729720c2 - (origin/revert-101-cherry_pick_3698) Revert "Recreate any port(s) if the configured speed does not match" (3 hours ago) [bingwang-ms]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld