[submodule] Update submodule sonic-platform-daemons to the latest HEAD automatically (sonic-net#21731)

#### Why I did it
src/sonic-platform-daemons
```
* 29e65fe - (HEAD -> master, origin/master, origin/HEAD) thermalctld: Ignore exception when deleting chassisdb entry fails (sonic-net#585) (5 days ago) [Patrick MacArthur]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld