[submodule] Update submodule sonic-platform-daemons to the latest HEAD automatically (sonic-net#20660)

#### Why I did it
src/sonic-platform-daemons
```
* fc557a1 - (HEAD -> master, origin/master, origin/HEAD) [SmartSwitch] Add implementation for the DPU chassis daemon. (sonic-net#554) (12 hours ago) [Oleksandr Ivantsiv]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld