[submodule] Update submodule sonic-platform-daemons to the latest HEA…

…D automatically (#20015)

#### Why I did it
src/sonic-platform-daemons
```
* 91c1c7d - (HEAD -> 202405, origin/202405) [chassis][pmon][chassid] Enhance the chassid module on-line or off-line log messages with physical slot number (#530) (27 hours ago) [Marty Y. Lok]
```
#### How I did it
#### How to verify it
#### Description for the changelog