[submodule][202412] Update submodule sonic-platform-daemons to the latest HEAD automatically (sonic-net#1246)

#### Why I did it
src/sonic-platform-daemons
```
* c6f5f57 - (HEAD -> 202412, origin/202412) xcvrd: Remove SFP API object when SFP is removed (#22) (9 hours ago) [mssonicbld]
* a68c977 - Add Robust Exception Handling to pcied Daemon for Improved Stability (sonic-net#618) (#20) (2 days ago) [Vasundhara Volam]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: r12f